CNG sold about 30+ Galst coins ex ILM, most or all
Judaean & related, purchases dated c. 1987-2007. I assume
CNG gets that from Galst's white collector envelopes. I can't find any firms in
Fitzwilliam's
catalog library that would fit.
At least two were indirect purchases, i.e.,
had intermediate sales: The Brody
Collection, Goldberg 98 & NY Sale XXXIX. Both Brody sales said "privately purchased," 2002 & 2006. The Galst sales IDed those as bought by Brody from ILM.
Sounds like another collector, maybe from Bronx or NY Coin Clubs, or another friend of Galst's? (Seems like he knew everyone.)
Unless it's a Latinized initials for Joel L
Malter! (Just joking, but 2007 wouldn't fit.)