Kunsthistorisches cabinet DI Kotelnikov "Porcupine"
 

There are three good graphic works from the collection of "porcupine" with stamps and inscriptions, including "The Gift of the author, on the reverse side, but search engines do not provide any information about the existence of this" cabinet ". What does this mean? Can anyone even suggest something? Thank you.

Gala, And who is the author? DI Kotelnikov?

No, no, Kotelnikov, as I understand it, the owner of the collection and incomprehensible to me that education, as art director-history. Cabinet DI Kotelnikov "Porcupine", ie not just "a collection of Nyquist." The authors and artists of the 30-70gg . This is from SPeterburga. I want to know specifically about Kotelnikov and his cabinet.
(photo quality leaves much to be ... they are not mine, now I can not offer more)