As with any firearm, it is not possible to accurately appraise a gun without seeing it. Condition, and original configuration will determine value. Other factors such as rarity of caliber or guage and higher grades have significant impact on value. Recommend that you see a local gun dealer for an appraisal. You can also do your own investigation by looking at other models being sold that are in the same condition as yours. Try the gunbroker.com or a periodical called "The Gun List" You can also reference the Blue Book of Gun Values which can be purchased on line at various retailers.
GOVERNMENT MODEL # W104448
This is a .22 caliber air pistol not a .177 caliber pistol. See the link below for the owners manual.
Impossible to answer without the model of pistol,caliber,overall condition,and a serial number to date the firearms production year.
Small inexpensive pistol
The 137 is part of the 130 series of pistols made between 1946 to 1985. The 130 was a BB gun, the 132 was a .22 caliber and 137 was a .177 caliber pellet pistol. In order to give you an estimate of value I need to know the current condition of the gun. Is it in working condition. Is it in Poor, Fair, Good, Very Good or Excellent condition?
50 or so
In perfect condition, $100.00
value depends on overall condition.....
about 1920 the value would depend of overall condition of pistol.
maybe 100 USD
75-200 USD depending on condition.
That is '6.35mm' or .25 auto. Value depends on condition.
$100-$250, dpending on condition.
50-300 USD or so
any single or double action semi-automatic pistol listed as a 40 caliber pistol...............
much depends on condition and mfg date.........from $400 to $1200 average
Caliber .45 Automatic Colt Pistol.
$100-$430 or so, depending on condition. USD - United States Dollars