HS-39, serial 385947 is stamped into the engine block.
I have a Johnson serial # list that goes back to the 20’s; It has HA and HD models for 1939, but no HS, and the serial # places it in 1940 (when there were no XX-39 models documented). It has no recoil starter so it’s not an HD-xx model.
Is this the “Peterborough serial # problem”, or is it due to wartime confusion/leftovers, or dyslexia ?
Does anyone out there have a more authoritative source than mine (discount-marine-parts) ?