Ludwig LM402 6.5x14 Supraphonic - B Stock (LM402B) Classic drum 14 x 6.5 Ludalloy shell. Ludwig brand new snare. B stock are factory seconds that usually have a flaw in the finish of some sort but often very difficult to find. B stocks have a full Blue/Olive badge without a serial number.  Has the new Ludwig P85AC Atlas throw off! Photo is a typical B stock snare drum.    

Ludwig Supraphonic LM400 B stock   Photo is of a typical example of B-Stock not actual drum. Classic drum used on thousands of hits! 10 lug Lud-Alloy shell with highly polished chrome finish. P88 throw off. Must have snare drum. B-Stock drums are mechanically sound drums with minor finish imperfections. B-Stock drums are designated by the classic Blue/Olive badge with the serial number strip cut off

Ludwig Black Beauty 14x5 LB416 - B Stock B stock snares from Ludwig are fantastic drums. The B stock only refers to cosmetic flaws in the plating. Ludwig opt to build these drums out as if they were new as to not junk the otherwise perfect shells.  B stock drums generally have a cut Blue Olive badge on the 5" depth snare.  Drum features exactly the same as buying a new non B-stock drum. 

Ludwig 6.5x14 Chrome over Brass Supraphonic - B Stock Black beauty sound in a chrome finish and a lower price! This is a b stock drum with some minor finish flaws. B stock indicated by Blue/Olive badge.  Great price for a great drum!