Check this out!

Gretsch 4106 - S/N = 31189

http://www.ebay.com/itm/60s-GRETSCH-ROUNDBADGE-COB-5X14-SNARE-DRUM-SHELL-W-LUGS-BADGE-B-PLATE-KEYHOLDER-/121158244962?pt=LH_DefaultDomain_0&hash=item1c35981a62

Gretsch 4106 - S/N = 31157

http://www.ebay.com/itm/SUPER-RARE-1960s-GRETSCH-CHROME-OVER-BRASS-SNARE-DRUM-4106-/151100258158?pt=LH_DefaultDomain_0&hash=item232e46f76e

That's a S/N difference of 32. It's very possible these drums were even made the same day by the same crew. Now both are being auctioned by two different sellers at the same time. That's freaky!.

Maybe the owner of "31157" should change their description and BIN price. ;)

Has anyone else ever discovered similar situation?

-Tim