Hello & Help

[ChristopherDamron]

Hello everyone and happy new year. I am an FFL and definitely not a shotgun guy at all. A family member recently gave me a parker bros shotgun to sell for him. I decided to check it out and went through the "how to identify your parker bros shotgun" article but it makes no sense. The grade on mine isnt even listed ( OV) even if I take the O away there is no V grade. Also the there is no gauge listed anywhere. If anyone could help me identify it I would appreciate it. Checking the SN it supposedly was made in 1914. I know it's made of Trojan steel because it says on the rib. Other than that I'm lost.

I appreciate any help so I can actually tell some of my customers eagerly awaiting what I actually have. Thanks in advance for any help.