German firms like Mauser, Walther, etc..
Fabrique Nationale in Herstal Belgium made all of the Browning Belgian guns, even after 1950.
1900-1950 give or take a decade
DE is short for Deutschland.
The Van Karner gas gun fires tear gas cartridges. It is a copy of the german Scheintod pistol made in the early 1900's. Van Karner also made flair guns which were used in WW2.
No published data to give a definitive answer.
Ranger was possibly made by Hunter Arms Company and sold by Sears from 1930-1950.
It's made of copper-plated steel.
I believe the German company Walter Tools made the first ones around 1950.
guns made in 1950 to 1960's had no serial numbers.
The Mossberg model 283 TB was made from the 1950"s to the 1970"s. They were low priced, entry level guns.
Nobody made the helicopter in 1900
Artillery like howitzers, naval guns from battleships and from the Turkish forts along the Dardenelles. Allied forces used .303 calibre Lee Enfield rifles. Some Turks used German Mausers. Machine guns for the Allies were usually Lewis guns. For the Turks there were some German Spandaus. There were also bombs. The Anzacs usually made home-made ones out of jam-tins and bits of metal.