I would not be too hopeful on getting the info. At that time, the law did not require serial numbers on .22 rifles and shotguns, and few makers put them on, except for high-ticket items like the Winchester 52. Generally, no records were kept of individual guns, since there was no method of doing so.
In fact, one of the consequences of the Gun Control Act of 1968, which mandated serial numbers on all guns, was that makers simply stopped producing inexpensive .22 rifles and shotguns, saying the market would not stand the increase in price caused by the numbering and the attendant record keeping.
Jim