"Znachki" is a word far outside the lexicon of most readers, but the Newman Portal user will find two useful entries on the subject. Dick Johnson's Encyclopedia of Coin and Medal Technologyfirst offers a formal definition:

I'm not sure if I'd rather be called a falerist or a philatelist (stamp collector), fortunately "numismatist," in English at least, doesn't sound nearly as creepy. Are there American collectors ofznachki? Indeed there are, and Alaska dealer Dick Hanscom created a newsletter, The Alaskan Znachki Bulletin, in the late 1980s. Although not strictly numismatic, these are often collected inconjunction with tokens, and similar themes are illustrated on each. Political badges and related Americana are a staple of U.S. coin shows, and in Alaska you might also see "znachki."

Image: From the June 1987 issue of Alaskan Znacki Bulletin, a pin protesting President Carter's Alaskan anti-development policy.

Link to "Znachki" in Dick Johnson's Encyclopedia of Coin and Medal Technology:
https://nnp.wustl.edu/library/dictionarydetail/517049

Link to Alaskan Znachki Bulletin on Newman Portal:
https://nnp.wustl.edu/library/publisherdetail/524076