I've been researching this gun for awhile now, and it appears that due to it's "secondary" nature as a German Military pistol, it's value is not as high as one might think for being over 90 years old.
The few that I have seen have ranged from $200 to $300 in 75% condition.
It was manufactured from 1915 to 1918 from the Imperial German Army for World War I. It was classified as a secondary firearm. Approximately 45,000 were produced from 1915 to 1918.
The exact value of a 1910 Colt 22 caliber mini handgun would actually be highly dependent on a number of factors. Most importantly, the condition of the handgun.
Which model, what condition, condition, and condition?????
50-200 or so
50-100 or so
10-200 USD or so
100 or so
50 or so
Impossible to answer without knowing if it is a rifle, handgun, shotgun and the caliber/gauge.
100-500 or more depending on specifics
Impossible to answer without knowing who made it.
30-60 USD or so
5-50 or so