This gun and I are both very old.

[Joe M. Frank]

The gun is marked Parker and belonged to my Grandpa (1857-1940) then to my Pa (1892-1968) and at age 86 I’m fixing to pass it to my son and grandson. It can’t be an expensive gun because Grandpa raised 4 kids in the log house he built near the present “Boon’s Lick Historic Site” in the hills of mid Missouri. They raised most of their food and a little tobacco for cash crop and I think he used this old blunder bust to help put meat on the table.
Like me it’s a wall hanger and I guess it’s a 10 gauge (I measure .80” bore) and with 31 ¾ “ barrels I would sure hate to pull both triggers at the same time. I want to find out is it a true Parker Bros. gun and when was it made before I pass it on. Any info would be appreciated and also, if it is a Parker would purchase of the book “Parker Gun, Identification & Serialization” be worth while for info on this specific gun.
Thanks for any help