Original German WWII M30 3rd Model Gas Mask in Size 1 with Filter and Can - Dated 1939 Multi Nation Flags Research indicates that this is

Research indicates that this is short for the known Showa Era sword smith 石原通廣 - ISHIHARA MICHIHIRO

The blade does have a few small bits of corrosion near the edge

The M16 and M18 helmets remained in usage through-out the Weimar Reichswehr

Model PK-1

on the pommel cap

Original German WWII M30 3rd Model Gas Mask in Size 1 with Filter and Can - Dated 1939 Multi Nation Flags Research indicates that this isOriginal Item: Only One Available. This is a nice condition model M30 G Maske or Gasschutzmaske (Gas protection mask), complete with an original Filter and Carrying can, all with WWII Dates and markings. This example looks to have been issued to the German Luftschutz, as indicated by markings stamped on the inside above the eyes: RL1 38 3 Vertrieb gem 8 Luftschutzgesetz genehmigt This indicates the distribution information: Distribution approved