The value of ANY gun is based on the exact make, model, and condition. The Baby Hammerless was not a derringer, but a very tiny revolver with a folding trigger. The value of those revolvers runs about $200 for a working specimen in fair condition. Do NOT attempt to fire this with modern high speed 22 Shorts- it was made for black powder cartridges. Better condition can equal higher prices.
50-500 usd
100-300 USD
Pi Squared
about $250 max
the model 36 did come nickel finish. I had one. But don't recall seeing any with the shroud
You need the services of a gunsmith.
$100-$150, depending on exact model and condition. In general, the Llama was not a high dollar firearm.
No, because a plated metal is not a mixture of elements.
probably some time after it was made. the military model was not nickel plated.
assuming it was nickel plated after market, it would lose value for that reason.....
Impossible to answer without a detailed description of all markings, finish, condition, accessories, box, papers, etc..
By the color, obviously. NIckel plated flutes are slightly golden and well, silver plated, they have silver color.