Relative to what? To an interested collector, a 24 gauge would be worth more than an identical gun in a larger (and more common) gauge. To someone who wanted it for hunting or target shooting, it would be worth less than one for which ammunition is readily available.
Parker 12 ga muzzleloader
sawed-off double barreled 12 gauge Remington shotgun.
Gun shop, gun show, Shotgun News, Gun List
The double barreled red chieftain of course!
50-100 or so
Stephens
Stevens Arms made the Ranger shotgun for Sears & Roebuck. Production ended about 1930.
No.
'Granny' used a double-barreled , 12-gauge shotgun .
Probably early 1900's
Just another model in the Stevens line.
Unlikely more than 125 or so