Looking for Parker Lifter Info

[azaffiro]

Hi. I bought this Parker Brothers 8ga Lifter. I know NOTHING about it other than what I found on the internet (specifically this site). I was hoping for some general information including price. I believe it to be in its original form. The barrel is pitted and it looks like most of the finish is worn. The hammers and trigger work except for the back trigger doesn't reset easily. You have to help it back to position. I'm sure it is just a bad spring or dirty. This is what I have figured out so far:

Serial #7519 = 1876
Gauge 8
Frame #3
Weight 5-10? Written like 5 to the 10th power
Order # 7824
Grade 2 = GH?
30" Damascus


Any thing else you could tell me would be super helpful. I would like to sell this shotgun so any info including value or a good place to sell it would be appreciated. Thanks a lot!