I looked at the link, it says
"R.M. Osbahr was a gun-maker based in the United States, known for producing high-quality firearms during the late 19th and early 20th centuries. The company specialized in custom-made shotguns and rifles, often recognized for their craftsmanship and attention to detail. Osbahr's work was highly regarded among hunters and collectors, contributing to his reputation in the firearms community. The company is no longer in operation, but its products remain sought after by enthusiasts."
FYI, if your rifle was built in the 1960's, the 1960's are not considered part of the "early 20th century". I am not sure how much faith your should put into the above quote.
