I have three drillings that I am looking to sell and am trying to find out what the value of them are. #1 Can't find maker. Underside of barrels marked flussstahl Krupp Essen Under rifle barrel marked Gussstahl Kruoo Essen Ser. # 1346 16x16x8.7mm numerous stamps incl. nitro Lt. engraving. #2 Josef Wirnhier pe Arrkirchen 16x16x9.3mm also numerous proof marks alond with 4.23 333 Very heavy deep engraving receiver is polished silver/ nickel/? Fantastic stock wood w/ cartridge holder on bottom of stock Action is side release #3 Miiler & Val Greiss in Munchen 16x16x ? Barrel marked 470 Barrel is very large bore. Ser.# 20738 Very heavy deep endraving On top of stock is silver ilay in shape of a crest. On side of stock is silver inlaid emblem. center of emblem is a crown and below are letters interwoven. tough to make out because of fancy scrolling. Engraved into edge of silver emblem is the following--- Jhrem leiben Julius Grafen Zech seine Kameraden im 2 Jufanterie Regiment Kron Pruix. Gun is a work of art. old and untouched release if from lever wrapped around trigger guard. All three guns are hammer guns, all in great condition What are they worth?