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

Gunpowder, Facts, History, & Definition

Dangerous products or services - Advertising Policies Help

Ammunition Box Submissions

What Science Tells Us About the Effects of Gun Policies

Fox News - Wikipedia

The New IWC Mark XX – Now With In-House Movement

First Look: Federal 100th Anniversary 1911 From Nighthawk Custom

US and NATO grapple with critical ammo shortage for Ukraine

Walmart Policies and Guidelines

EU leaders gather with Ukraine ammunition production and Gaza aid