300-600 USD depending on box, papers and what "excellent" translates into when sold/bought and to who (ind vs. dealer)
For a fiberglass wrapped SCBA cylinder it is recommended that the cylinder has a hydrostatic test every three years for any leaks or flaws. A fiberglass wrapped SCBA cylinder is also expect to have a service life of 15 years.
My 1995 s10 with the 4-cylinder, stick shift, and 180K miles gets ~24 MPG, but I keep it in excellent condition. New cylinder head,valves, ignition coils, etc.. I imagine a 1991 wouldn't be that far off what I get.
Inexpensive Italian copy of a Colt revolver. Value $75-$100 in excellent condition. Some also had a second cylinder in .22 Magnum- add $15 for second cylinder.
Grade 1 standard engraving $1200-2200 for private sale
50-500 usd
This Model 676 was equipped from the factory with both a .22lr cylinder and a .22 wmrf cylinder - depending upon condition and barrel length (12" barrel commands a 20% premium) value will range from Excellent - $275 down to Fair - $75.
Your description is badly incomplete. Assuming you have a Tanarmi revolver with both a Long Rifle and a Magnum cylinder, value is about $175 for one in excellent condition. These were not high dollar guns.
NEVER
Winchester Magnum rim fire
These Winchester model 12 shotguns are selling for between 450 dollars for a shotgun with 60% of the original finish remaining,up to 725 dollars for a fine example with 95% original finish remaining on the wood and metal and a fine bore.
First off when you ask about these guns Condition is the number one Key to a fair Price so given no "Condition" I'll take a few shots at it In Very New condition or as new 100 % 26" BARRELS ARE CHOKED CYLINDER AND IMPROVED CYLINDER. 3" CHAMBERS, SINGLE SELECTIVE TRIGGER. MANUAL EXTRACTORS. EXCELLENT BORES. Used not New 430 too 480 In good condition 300 too 400 In fair condition 200 too 300 In ruff but good working order Maybe 200 and under These are the Very Best numbers you could get IMHO
If the barrel has "IMP. CYL." stamped on the barrel near the breech, then the barrel was originally 26" or 28" long, and has been cut If only "CYL." is stamped on the barrel, then it is a riot model and the barrel should be 20" long. I have seen Model 25 Winchester riot guns in the same serial number range that were reportedly used by the Tennessee State Police/Highway Patrol. This claim(s) has not been verified to my knowledge. If it is an original Model 25 Winchester riot shotgun, the fact that you live in Tennessee and got it in Tennessee lends credence to the possibility that it was used by the Tennessee State Police/Highway Patrol. And the fact it is in excellent condition could possibly mean it was used, but very little, by a law enforcement agency. The serial number listed in the question would suggest that the gun was manufactured in 1950 or 1951.