Hi, I got this from a UK fair years ago, all the dealer knew was it came from a museum. It weighs 17.4 LBS and is 23" long and about 4.5" I cant see any markings and there are threads for a fuze in the back but the casing is filled with something. Any ideas what it is and is it worth anything?
By andy19422 at 2012-07-31

By andy19422 at 2012-07-31