Your Hopkins & Allen XL model was made between 1902-1914.These were a five shot double action.there value is not much,between 55-160 dollars.
10-100 USD or so
Hopkins & Allen Arms Co. Fifty Years of Gunmaking 1867 - 1917 by Joseph T. Vorisek is about the best book on H&A.
Try Hopkins & Allen. Depending on condition, anywhere from $25-100.
Cornell publications might have what you are looking for.
Inexpensive turn of the century handgun
50-100 USD
25-100 USD or so
any single or double action semi-automatic pistol listed as a 40 caliber pistol...............
10-1000 USD depending on specifics.
25-75 USD
25-75 USD
It depends on the make and model. Is it a double action or single action revolver?