Gift to Laszlo Nussbaum by a friend

This stamp imitation is from a friend of mine who deals with stamps. He has a philatelic shop in Cluj right now and keeps the connection with Israel. His nationality is Romanian but he is interested in all kinds of things. He gave me this reproduction as a present. His purpose was to show that a Jewish sports club existed in Kolozsvar [today Cluj], called Haggibbor. Actually it looks like a stamp but it's not. I think they were stamps of club dues. They had to pay dues to the organization and they didn't give receipts but stuck in a stamp like this, probably in some sort of booklet.