Standard Felt, Back Check, White 100% Wool 2011-08-25 CURRENT AMS3285F This specification covers felted wool fibers in the form of sheets and rolls.
Standard FELT, BACK CHECK, WHITE 100% Wool 2011-08-09 HISTORICAL AMS3285D This specification covers felted wool fibers in the form of sheets and rolls.
Standard Felt, Back Check, White 100% Wool 2006-01-06 HISTORICAL AMS3285E This specification covers felted wool fibers in the form of sheets and rolls.
Standard FELT, BACK CHECK, WHITE 100% Wool 1974-06-01 HISTORICAL AMS3285C This specification covers felted wool fibers in the form of sheets and rolls.