I recently came into a Savage 87A .22 rifle. The rifle has no serial number (and no place looking like it was removed) and is complete. It shoots well. I am wondering about when these rifles were made, and an approximate value. I cannot seem to find it in any reference books. I figure it's worth about $75 just because it's a decent shooter. After taking it apart for a clean-up, I can say it is certainly made better than my old Mossberg 152! Any info?