The 1941 Johnson never came from the factory with matching numbers.most parts are numbered but don't have the same number as the receiver.
The one in the picture is still in its original configuration,not sporterized so worth quite a bit of money.
The barrels can be switched in less than a minute,so to bring it back to its original 30-06 one would have to find an original barrel and put it on.
I bought mine about 5 years ago and it came with 2 barrels,one in 30-06 and one in 7.62x51 NATO,both work great.