I do not know if this is the wrong sub but thought maybe some of you guys might know your North American beer history.
Photos of the keg can be found below:
The name was changed to Pabst Brewing Co. in 1889. During prohibition (1920-1933), Pabst took "Brewing" out of the company name, stopped making beer and made cheese instead. So if it's from pre-prohibition it would have been from 1889-1920.
Is there a tap hole on the top/bottom/side or just the bung hole?