I've only got one pre 64 Model 70. A friend gave me a 300 HH. His Dad was a guide and bought it for dudes to shoot. I think he said they bought it in the 50s? Its got a 6 digit serial number. Would Rules book tell me what year it was made? It's a shooter not a collector. I've had it a couple years and never shot it. I may take it moose hunting this year just for the hell of it.