Coin girls on Gor

A form of street slave
Sent out by their Masters with coin boxes and bells to earn him money for her use
Coin girls were a form of street slave, usually sent into the streets around dusk by their masters, who commonly own several of them, with a chain on their neck, to which would be attached, normally, a bell, to call attention to their whereabouts, and a small, locked coin box. And woe to the girl who returns with coins jangling in the box! To be sure, in some places, one might even have a paga slave, or a brothel slave, for as little as a tarsk bit.
Renegades

"The girl had been half naked, in a brown rag. I had thought she had been superb. To be sure Coin Girls are usually regarded as the lowest form of Gorean street slave."
Guardsman

Bell is narrow, flattish, triangular shaped
Box is small, metal, locked.
"I unwrapped then the object from the silk on the table. There was the sound of the metal clapper in the narrow, flattish, triangular shaped bell, the rustle of the chain and lock, the sound of the small, metal,sturdy, rectangular, locked coin box. I dangled the chain, the girl bell and the coin box before her eyes.
Rogue

Private slaves sometimes sent out as coin girls to discipline when they have not been fully pleasing
"An excellent idea," sid Tasdron. "Now she will attract only the attention natural to a coin girl in the streets." "Some may recognize her, of course," I said. "I do not think many will," said Tasdron, "and if some do, they will simply assume that she has been put into the streets for discipline."
"That too was my conjecture," I said. Though the Gorean coin girl is commonly one of several girls, one of a stable there so to speak, sent daily into the streets to earn money as the chattels they are for their master, under the penalty of whippings or tortures, or death, if their day's work does not prove sufficiently lucrative, it is not unknown for this sensual charge to be also placed upon a private girl, usually as a punishment for having failed in some way, often trivial or negligible, to be fully pleasing.
After having been sent into the humiliations and dangers of the streets, it is a rare girl who does not hurry back, eager and chastened, to the intimate joys of a private slavery.
Rogue

The slaves Master may even send men to 'test' her
Too, it is not unkown for a master to sometimes send even an equisitely trained, beautiful high slave into the streets, usually as a joke or a discipline. Such a girl knows that she must perform superbly. Some of the men she falls in with may have been hired by her master, to report back on the quality of her services."
Guardsman

Coin girl usually owned as one of many by a renter/dealer
Sent out to streets in afternoon
Beaten if not profitable
Coin girls must return before 19th ahn
Hours of use of coin girls is by agreement of the renters/dealers in coin girls
"It is called the Street of the Writhing Slave. It is dark and narrow, and not far from the wharves. It has its name from the fact that most renters of, and dealers in, Coin Girls in Victoria, keep their kennels on this street. The girls of the day, designated by a coiled whip pressed against their left shoulder, wearing their neck chains, with the attached bell and coin box, are sent into the streets in the late afternoon and expected to return before the nineteenth ahn. And woe to the girl who does not return with a jangling coin box on her neck chain! Some girls, once designated, and locked in their accounterments, kneeling, weeping, scratch even at the insides of the stout gates of their masters' houses, hoping to be sent into the streets early, that their chances of turning a profit for their master, and thus avoiding a beating or torture, may be enhanced. Such a lenience, however, is seldom shown to the girls, as it is against an agreement binding the entrepreneurs engaged in this trade. Sometimes the girls are sent into the streets with their hands braceleted behind their backs. Sometimes they are sent into the streets with their small hands free, that they may use them to please their master's customers. Sometimes a new girl is sent into the streets on a leash, with an older girl, that she may learn how a Coin Girl behaves."
Guardsman

"I continued to walk up the Street of the Writhing Slave. Such girls, now, as it was late, past the nineteenth Ahn, would surely, at least for the most part, be chained in their basement kennels, lying on their straw mats, trying to sleep, clutching their thin blankets about their nude bodies."
Guardsman

" 'It is late,' said the girl with the leash. 'It is past the nineteenth Ahn. That you should be out now is even against the agreements of the renters of Coin Girls.'
Guardsman

Sometimes sent leashed with another coin girl to learn
Sometimes a new girl is sent into the streets on a leash, with an older girl, that she may learn how a Coin Girl behaves."
Guardsman

"The girl who held her leash then jerked twice on the leash. 'May I serve your pleasure, Master?' asked the leashed girl.
'I thought you were a Coin Girl,' I said.
'She is a Coin Girl,' said the girl who held her leash. Then she jerked the leash once, against the collar ring.
'I am a Coin Girl,' said the leashed girl, before me.
'Interest him,' said the other girl.
'I am yours for a tarsk bit, Master,' said the leashed girl.
'Open your tunic,' said the other girl.
The girl then slipped loose the binding-fiber belt, letting it fall against the two belt loops in the back. Then, with her left hand and her right hand, parting the tunic, holding it open, she showed herself to me.
She was the most beautiful, and attractive, woman I had ever seen.
'It is my hope that I please Master,' she said.
'Beverly,' I said.
'She has no name,' said the girl who held her leash, 'Her master has not yet given her one. but once, it is true, that she was known as Beverly. For that reason I suggest, if you are interested in her, that you give her, for your use of her, another name.'
I regarded the beautiful girl. she trembled. she did not close her tunic."
Guardsman

" 'You are a female, and he is a man,' said the girl who held the leash. 'Interest him.'
'Please, Mistress,' begged the girl.
'Bite at his tunic, and lick at his legs and feet,' commanded the girl who held the leash.
Softly then did the bell of the Coin Girl sound, and the chain and coin box on her neck, as she who had once been Miss Henderson turned her head to the side, and began, with her small, fine white teeth, to bite and nibble at the hem of my tunic. I felt these small tugs, piteous and delicate, and then she, with her lips, pressed the wet tunic against my thigh and through the wet cloth, kissed me. She then, putting her head down, began to lick and kiss at my legs and feet. She performed this submission behavior for several minutes, piteously, desperately, beseechingly, entreatingly. Then, at last, her head down, over my feet, she whispered, begging, 'Please have me for a tarsk bit, Master. Please have me for only a tarsk bit, Master.' "
Guardsman

Taking advantage of lust aroused by dancers, to earn her coin
After the dance of Tuka, men and slaves departed from the circle, many doubtless to hurry to their blankets and tents. I, too, thought I had taken comfort earlier with the blond mat girl, was uncomfortable.
“Use me, Master?” said a coin girl.
I looked down at her, a small brunet, half naked in a ta-teera, a slave rag. About her neck, over her collar, close about it, was a chain collar, padlocked shut, with its coin box, and slot.
“Master?” she smiled.
I was angry. She had doubtless come to a circle, knowing that fellows in need, ones without slaves, such as I, might be found there. Her attitude seemed to me insufficiently respectful. She was not even kneeling.
“Oh!” she cried, spinning to the side, cuffed.
I snapped my fingers. “There,” I said, pointing, indicating a place before me, “kneel there, facing away from me.” Swiftly she crawled to the place, obeying. “On your belly,” I snapped. Swiftly did she fling herself, a slave who might have been displeasing, in terror, to her belly. I seized her ankles and parted them, widely, pulling her toward me. “Perhaps you deserve a full lashing,” I said. “No, please, Master!” she wept. “How much are you?” I asked. “Only a tarsk bit, Master!” she wept. I considered the matter. I could afford that. I dragged her back to me. She gasped, mine. “Oh!” she cried. “Oh! Oh!” Then I thrust her from me, and stood. She was then on her side, looking back at me. She was grasping. I kicked her, angrily, with the side of my foot. She winced. “Forgive me, Master,” she wept. “I beg forgiveness!” “Perhaps you will learn manners,” I said. “Yes, Master,” she said. “Perhaps you will know enough next time to be respectful, and to kneel before men,” I said. Yes, Master,” she said. “Forgive me, Master!” I looked down upon her angrily. I think she feared she might be again cuffed, or kicked. Then she crawled to my feet, and kissed them. Then she looked up at me. “Buy me, “she begged, suddenly. “It is to a man such as you that I wish to belong!” I dragged her to her knees by the hair and, she sobbing, trying to hold me, thrust a coin, a tarsk bit into the coin box. I then thrust her back to the dirt, on her side, and, turning about, angrily, left her. “Master!” she called after me. “Please, Master!” In a time I turned back to regard her. She was where I had left her, except that she was now kneeling. Her shoulders shook with sobs. She had the coin box, on its chain, lifted in her hands. Her head was down, and her hair fell about the coin box. She pressed her lips to it, again and again, sobbing. I did not think that she was a poor slave. I think rather that she merely needed a strong master.
“Well done,” said a fellow, passing me.
I looked back at the girl again. She did have pretty thighs, well revealed in the ta-teera. But then I steeled myself against softness, and reminded myself that this was no time to acquire a bond maid, even one with a lovely little figure and pretty thighs, one who was now clearly ready to obey instantly, and with perfection
Magicians