There is 2 brass pins under the flap that at one point had the owners information, you can see in the last couple photos. Removable, adjustable long Bridle Leather shoulder strap with pad. 2 front pockets, back sleeve pocket and large interior.
Construction details were carefully considered in this field bag, even those that are not obvious, such as the Tin Cloth binding on interior seams and the sand-cast brass hardware that’s debossed custom for Filson.
The O in the Filson has a red mark in it. FEATURES OF THE FILSON FIELD SMALL BAG. Removable, adjustable 46" long Bridle Leather shoulder strap with pad. 3 Stow pockets, 2 Bellows pockets. Reinforced base for heavy loads.