Manufacturer stamp: B.B. CO - General Ammunition Discussion

Many say “B.B. CO.” is Bridgeport Brass Company, but I can’t find evidence of that. Can anyone help me verify that “B.B. CO.” is in fact Bridgeport Brass Company? I have found Bridgeport Brass Company markings “BBC” and “B” in a diamond, but not “B.B. CO.”. I wonder if it may actually be Bristol Brass Company, which did use “B.B. CO.”. Examples

Colt 25 Twin Pack Spring Powered Airsoft Pistols, 200 FPS, 70 BB

10+ Easter crafts ideas for kids & adults

Crosman® 12g CO2 Cylinders for all Crosman® Gas Guns, Rust

Jennifer Garner's Once Upon a Farm Has an Audacious, Mission

Shooters: How Video Games Fund Arms Manufacturers

7.62 x 39mm Hungarian blank? - General Ammunition Discussion

Umarex Glock 19 Gen 3 Air Pistol .177 Cal w/ BB Jug & CO2 Bundle

Crosman Powerlet BB Gun 12 g CO2 Cartridges, 15 ct. at Tractor

At Your Own Risk: Reprisals against Critics of World Bank Group