The ad claims the hardware is original, but Youngstown went to the V or wing shape pull about '53*, and used those up until the end as far as I know. Maybe the original owner ordered some other hardware for theirs.
*My parents had Youngstown cabinets put in sometime in '53, and some of the cabinets arrived with the old style pull, and some with the new. Dealer had to order several of the new style to replace the non matching ones.