Best left to a trained gunsmith with the proper tools.
the Winchester 9410
The winchester model 42 was a .410 pump very like the old model 12 pump
cooey 410 gauge model 840 Winchester Canada. single shot
yes
5-500 usd
Check the receiver.
Around 1500.00
Your winchester model 42 shotgun was made by winchester in 1954 with the serial number that you provided.
your Winchester model 42 shotgun was made in 1952.
Yes, they still sell .410 shotgun ammo.
There was/is no such thing as a 1940's vintage Winchester lever-action .410. Winchester did make a slide-action (pump) .410 shotgun called the Model 42 during the 1940s.
600-1200