Holabird has been around for a fair amount of time, quite reputable too, they deal in mainly territorial US gold and Alaska fractional coinage along with assay bars in gold and silver.
Fred Holabird was president of Kagin's rare coins for a while too. He has a fantastic book written on Nevada bottles and gold. He is known in the coin and antique industry as Mr. Nevada, if it's old and has to do with gold/silver mining, minting or similar antiques - he's your guy.
"Buy the Book Before You Buy the Coin" - Aaron R. Feldman - "And read it" - Me 2013!
ANA Life Member #3288 in good standing since 1981, ANS, Early American Coppers Member (EAC), Colonial Coin Collectors Club member (C4), Conder Token Collector Club member (CTCC), Civil War Token Society (CWTS) member, Liberty Seated Collectors Club (LSCC) & Numismatic Bibliomania Society member (NBS), USMex, Member in good standing, 2¢ variety collector.
See my want page:
http://goccf.com/t/140440