For reference, and thanks for calling these to my attention:
[ U184 ]
Philodemus, Treatises, Vol. Herc. 2, I.127: "The only contribution I require is that which … ordered the disciples to send me, even if they are among the Hyperboreans. I wish to receive from each of you two hundred and twenty drachmae a year and no more." And in another letter: "Ctesippus brought me the annual tribute, which was sent on behalf of your father and you yourself."
[ U185 ]
Philodemus, Treatises, Vol. Herc. 2, I.118: After having given a sheep to a young boy from an enclosed pen: "Take care of the toy that I have gifted to you."