Assassins use black banners to signify their territory (nc5).
Assassins have pockets in their belt and do not carry pouches (nc18).
Assassins may own slaves (nc52).

(notecard nc5 of Garians original SL Gor document)
'On the highest ground in camp,' said Mintar, 'near the second ditch and across from the great gate of Ar. You will see the black banner of the Caste of Assassins.'
Tarnsman Of Gor, Chapter 15

(notecard nc18 of Garians original SL Gor document)
Without speaking the man took twenty pieces of gold, tarn disks of Ar, of double weight, and gave them to Kuurus, who placed them in the pockets of his belt. The Assassins, unlike most castes, do not carry pouches.
Assassin Of Gor, Chapter 1

(notecard nc52 of Garians original SL Gor document)
"You are welcome," said he, smiling. Then he snapped his fingers. Through the door, bearing a tray, came a small, exquisite, brunet female slave. She was naked except for her collar and a leather-and-metal lock gag. Her mouth was closed. I saw the curved metal bars, rounded, about a quarter of an inch in diameter, emerging from the sides of her mouth. By means of a ratchet and pawl arrangement the device is fitted to the individual girl. It locks behind the back of the neck. It cannot be removed, even though the girl’s hands are free; She knelt before the gate of the cell and put her head to the steel floor. Two flasks on the tray she placed through the bars. She then slipped the tray through an opening, some four inches in height, in the bottom of the cell door. She then again put her head to the floor, and then stood up and withdrew, backing away, her head down. She looked at Drusus, who indicated she should leave the room. She slipped swiftly out, obedient, barefoot on the steel plates.
"A pretty little slave," I said. "Why is she in lock gag?"
"It pleases me," he said.
"Of course," I said.
Beasts Of Gor, Chapter 28

Further insight to assassins owning slaves:

By Garian Vidor
Quotes that support that assassins did have slaves:

Context of the quotes: The man is Drusus of the Assassins. He and the female mercenary (girl in most of these quotes), Sidney Anderson, are agents of the Kurii.

'I saw him look at her, angrily. I read the look in his eyes. I smiled to myself. I saw that it had been to him that she, when her work was done, had been promised as a slave.'
~Beasts of Gor, Chapter 9

"It is my conjecture," I said, "that you were eventually to be given to Drusus."
"Given?" she said.
"Of course," I said, "as a slave."
~Beasts of Gor, Chapter 11

"Drusus," said Arlene. "You must help us!" She had once
commanded him.
He looked at her, and she shrank back. "There is a pretty
little slave, too," he said.
She, terrified, tried to cover her body with her hands, half
naked in the pleasure silk. How vulnerable pleasure silk
makes a woman.
"I own her," I told him.
"I shall have her," he said.
"Oh?" I asked.
"Yes," he said, "she was originally brought to Gor with the
eventual object of being at my feet. I picked her out from
several future slaves."
~Beasts of Gor, Chapter 28

    "You are welcome," said he, smiling. Then he snapped his fingers. Through the door, bearing a tray, came a small, exquisite, brunet female slave. She was naked except for her collar and a leather-and-metal lock gag. Her mouth was closed. I saw the curved metal bars, rounded, about a quarter of an inch in diameter, emerging from the sides of her mouth. By means of a ratchet and pawl arrangement the device is fitted to the individual girl. It locks behind the back of the neck. It cannot be removed, even though the girl’s hands are free; She knelt before the gate of the cell and put her head to the steel floor. Two flasks on the tray she placed through the bars. She then slipped the tray through an opening, some four inches in height, in the bottom of the cell door. She then again put her head to the floor, and then stood up and withdrew, backing away, her head down. She looked at Drusus, who indicated she should leave the room. She slipped swiftly out, obedient, barefoot on the steel plates.
    "A pretty little slave," I said. "Why is she in lock gag?"
    "It pleases me," he said.
    "Of course," I said.
~Beasts of Gor, Chapter 28

'Tied by the necks to the left-hand, rear upright of the sled of Drusus, clad in furs, were the two beauties he had selected and chained in the complex of the Kurii.'
Beasts of Gor, Chapter 38

Last supporting evidence is in the most recent letter by John Norman himself, regarding the master of the slave within Witness of Gor. Below is the relative portion, but the full letter can be found at HERE after you register to that website.

"It is my conjecture, based on the Cabot manuscripts, that the "man with gray skin and eyes like glass" is most likely Pa-Kur, once the master of the Caste of Assassins. In Witness of Gor, we gather that Dorna, after the revolution in Tharna, and her escape from the city, fell slave. This would not be an unlikely fate for such a fugitive, particularly if strikingly beautiful and intently sought by a master swordsman, one fully capable of bringing her into his collar. It seems clear that her master could not have been Cabot. At least we have no documentation to that effect. Too, although Cabot might be a master to be feared if a slave were in the least bit displeasing, I suspect that a slave would have little to fear at his hands, or, indeed, at those of most men, if she did her best to serve with perfection, and did her best to be fully pleasing to her master, in all ways. Similarly, there seems little likelihood that Marlenus would be involved in these matters, being thousands of pasangs away, and ruling in Ar, until his accident and capture in the Voltai. Ha-Keel, also, I would suppose, would be an unlikely first master for the beautiful Dorna. That leaves Pa-Kur a possibility."
Copyright © 2007 John Norman. All rights reserved.

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