Can anybody steer me to a site where I can get a realistic value on some old firearms/reloading books? Have a box of old books that belonged to my uncle that are from the 30's 40's and 50's. Included in the box are an original 1936 copy of Elmer Keiths Sixgun Cartridges and Loads and an original 1946 copy of Keiths Rifles for Large Game. All the books are in excellent condition although most have my uncles name stamped or written in the front cover or title page. Would like to look up the approximate value on these before I decide what to do with them. Thanks for your input.