There are other markings on the gun, somewhere.
The browning superposed lightning trap shotgun will command a nice price.If your shotgun is between 60%-90% in its original finish and a good set of bores,you can get between 700-1,000 dollars.
76.2 cms
You need the services of a professional appraiser
30 inches is 76.2 centimeters.
30 inches is two and a half feet. 30in (divided by) 12in = 2.5ft
i don't know this answer but i have a this exact shotgun that was patented on this exact date that was given to me from my grandpa
hi , yes i have a 20bore hammer gun made by fry in London it has 30inch steel barrels and is nitro proofed and has 2 an three quarters inch chambers and is still in very good condition the stock length of pull from front trigger is 14 an a half inches i still shoot this gun on game and clay shooting.
Given an inch is 2.54 centimeters a 30 inch door (or anything else 30 inches long) will be 30x2.54 centimeters long
i have one from 1970. not quite a 30 inch barrel i think its a 26 but i had it appraised and in perfect out of the box condition youre looking at about 1600 dollars, mine is about 1100
If the whole container is rectangular, then its volume is 18" x 24" x 30" = 12,960 cubic inches = 7.5 cubic feet = 56.104 gallons
if its a English mastiff male cross with a female pitbul of good quality, then we can expect a 30inch for the new breed. and it will carry the activeness of the pitbul
You can't get a really good answer without providing pictures and a detailed description. It could be worth 200-10000 USD.