Screw Back VS. Pin Back

[ErichS]

Are Screw back EK1's rarer than Pin backs? What would be the ratio? Thanks, Erich

[schönbeck]

YEs the screwback is rarer, dont have a number in my head,,,...

[VonLuger]

Screwbacks are from LDO and not awarded...
also LDO memo in 1940 forbid manufacture of screwback attatchment..then LDO order in 1941 OK'd sales of screwbacks again...
curved or vaulted in pinback and screwback remained forbidden...

[schönbeck]

forbidden , but still used.......

[Mian_Tang]

Are Screw back EK1's rarer than Pin backs? What would be the ratio? Thanks, Erich

Screw back EK1 is rarer because it will rotate like windmill when you wearing it and running around,but the pin back does not.