Want this question answered?
Ruger's website has sn data you can look up.
50-200 or so
$300-$375, depending on condition.
40% of 91= 40% * 91= 0.4 * 91= 36.4
300
91 over 40 = 91 divided by 40 = 2.275
Don't know value, but made in 1918. 91 years ago. 1918-Made by Colt
It would depend on the guns condition as well as caliber being .45 ACP, or .45 Auto Rim.
100-350 or so
91 is a unit and has a value of 91 if you just leave it as a number
The Russian 91-91 in caliber 9x39 uses a 20 round box magazine,
Model 91 is a model number for handcuffs. If you mean a Single Shot Model of 1891, the single shot pistol, 100-2000 depending on EXACTLY what you have and condition.