Which .410 pistol? There have been several. Perhaps the most current is the Taurus Judge revolver. These are currently for sale, and you should be able to get a price from most dealers.
However, there have been earlier SMOOTHBORE .410 pistols, including the H&R Handy-gun (.410 smoothbore pistol w/ 10 inch bbl) and the .44 Gamegetter. These can be worth $500-$2000 depending on condition IF they have been registered with the BATFE and are transferable- they are Class III firearms, in the "Any Other Weapon" category.
Colt has never made a 45/410 pistol
a 410 ga. shotgun pistol was made by crescent firearms and is very rare. however, regular shotguns do not have much value
50-100 USD depending on specifics
10-100 usd
In their catalog
If this is a Stevens single shot #35 in .410. It is on the Federal List of banned weapons and is illegal to possess, or sell. Look at the National Firearms Act.
value of stevens 410 58b
Yes, it is a 410/45LC combo derringer, and runs about $80-$100.
chamber length
Depends on whether it is an NFA item or a C&R
what is value of investram 410 over and under shotgun
Try Taurus