I recently acquired a Western Field Shotgun model 600A ERI which was made by Remington around 1960. This gun was the same as the Remington 878. I was told that this gun was the first off the line and was givin to one of the biggest purchasers as a retirement gift. Is there any way of finding out if this was the first off the line? Any way of getting a "factory letter" of sorts?
Thanks,
Adam