Anna,
Just - simply - stunning... An wonderful example... While I've owned/verified/handled a number of 1937 HKs - your's is simply terrific. As 1937 was one of the high production runs, typically - they are a bit more used than yours, but - based on the pics, what little wear there is, certainly appears as "honest" wear...
Also - Christian.. John is actually right (even though his reply was in jest with a Wed. HK
LOL JS!!!
) I've seen the proofs in various orders through 30 years of focusing on HKs.. Now - for "witness marks" - if ANYONE can make rhyme or reason out of that on HK production??!!!
Best to you!
John D.