hello from michigan

[chriskrause]

I have a parker with hammers i got from my grandfather. I dont know much about it but am looking for some imformation on it and i am not having good luck.serial # 52543, frame size 4, 10 gauge, on the bottom side of the barrells it has a 4. which I know is the frame size. It also has E
L 15
6
On the water table, it has has three different patent dates along with a number 1 and the serial number
apr11 1876
sep6 1872

1 52543
mar16 1875
All serial numbers match, on the bottom of the receiver it has another patent date mar 26 1878
the bottom of the barrel has two patent numbers apr 11 1876
june 25 1878
The barrells measure 32" and it has the metal buttstock with the dog stamped
the top barrel says Parker Brothers Makers Meriden Conn. Laminated Steel.
Any help with this will be greatly appreciated, thank you very much.