1918 DWM Military Issue P.08

Hello, my uncle left me a luger and i got possession last week after his estate was probated. i always admired the weapon and he knew it. i have been asking lots of questions on this forum and everyone was fantastic in their help.

Based on this, i have a standard german military issue p.08. all the parts match with the number 21 and 121. the initials on top are DWM. the word gesichert, "made safe".

is stamped by the safety. 88&a small 8 is stamped on the barrel. and there is a letter suffix between the 121 and the 8's at the same spot on the barrel. there are four symbols stamped on the receiver and the Tech. Info Chart says that these symbols are the german military proofs found on DWM lugers 1914 - 1918. i don't know if this is the right place, but i would like to sell it, if it is valuable. thanks, lawrence fredrick klang