OK, the gun is back from the gunsmith after he disassembled, cleaned, inspected, reassembled, lubed, function checked, and provided a full written evaluation. In short, it is in remarkable condition for being built in 1889 and is generally safe to shoot with appropriate (low pressure) loads. 100% of the original wood finish is there and most of the metal finish as well. The barrel pattern really came up well. He said it was filthy inside with the old lube almost the color & consistency of varnish but it is clean and properly lubed now. There is evidence of previous disassembly with very minor damage to screw slots and the triggerplate.
It is an EH grade 10 ga. Parker with 30" barrels and 2-7/8 in. chambers.
Bore diameter L & R = .800 and L choke = .024, R choke = .026.
Wall thickness measures .074.
DAC = 1-28/32, DAH = 3-2/32 and Pull = 14-1/4.
No cast with 7 deg. down pitch.
Balance point = 5-1/2 with trigger pulls L = 5 lbs. 8 oz., R = 5 lbs. 11 oz.
Gun wieght = 9 lbs. 2 oz.
I don't know if the barrels are dam3 or dam4. I need to study the available online info to make the call. He didn't provide that info & I forgot to ask.
Pix to follow soon when I can get them done & uploaded. Hopefully in the next few days. I can't wait to get or load some appropriate loads and put the geese on notice!
Threaded Mode