I still get out to an occasional auction at Hill's Auction around the corner on the same hilltop (Flint Hill) as ours. That's where I made a mistake about a Barcalo straight 4-incher, thinking it was a fairly rare straight Bergman 4-incher. I bid on it, won it (for not much money), and then I discovered my mistake.
Looking at the two Bergman 4-inchers side-by-side with the Barcalo, it's obvious they are different. The hang hole on all Bergman wrenches is square, and the 4-inch Bergmans do not have the same divided handle design as the larger Bergmans and all Barcalos have.
