A 420B??Want to sell or trade? I have newer 3 burners. 426B and 426D s for trade. If you wish a user.
Randy
Slow, just took time to look up the dates. The 420 was made 1938 and 1940 ( not in 39 ) The list does not mention a 420B but looking at others on the list It might have been built in 1941.