m. k. telephone code system \n coding a card with four cards, see interlocutor reference for credit information \n max katz \n study in stud \n russell "rusduck" duck \n the rusduck enigma \n george blake \n ein telephon-kartencode \n max katz \n letters \n howard schwarzman \n raymond hafler \n bill spencer
1958
the cardiste Max Katz
M. K. Telephone Code System
coding a card with four cards, see Interlocutor reference for credit information
letters \n \n howard schwarzman \n raymond hafler \n bill spencer \n m. k. telephone code system \n max katz
1988
interlocutor Howard Schwarzman, Raymond Hafler, Bill Spencer