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.
A single action 9mm
$146.
50-500 usd
100-800 usd
50-500 uSD
Basically impossible to value with no other information.
Value of a Browning Hi Power in caliber 9mm Luger (9mm parabellum) will vary, depending on EXACT model (thee were several) markings, and condition. It may be as low as $300, or over a $1000 for the scarce specimens.
100-5000 USD
100-800 usd
i sold my high power 9mm pistol for $450 last year.
The value of a Browning 9mm 1945 serial number 693398a depends on its condition. This gun in excellent condition is valued between 600.00 and 800.00 as of 2014.
100-500 usd