ok two triggers means that it had two barrels and 27 is proble the grain it can use.
What is the age and value of a 12 gauge Union Firearms Company Pump Shotgun with the Numbers 6804 2-7 with 2 Triggers?
SN's not required before 1968
Yes
The front trigger opened the breach.
over 9000!
50-100 or so
Library, gun shows, Spain.
Blue Book of Gun Values
It probably does not have one. Serial numbers were not required on shotguns manufactured or imported before 1969.
0-250 USD depending on condition.
There is one for each barrel. The back one is for the left hand barrel and the front is for the right hand barrel.
Blue Book of Gun Values will help.