Walt is right about the furniture, these are not a "matched set". The forend is Herrett style, the grip earlier and TC wouldn't have sold the frame originally with mismatched furniture. This frame was probably made close to the transitional time between these standard issue furniture styles from TC. Without digging in storage for my old sales flyers I can't put the exact year on this furniture change though. But a guess would be when they also transitioned to the EO frames in 1981, to further set them apart as the new TC on the block.
A nice find in what sounds like in great condition, and the 41MAG is a great shooter.
Larry