Considering a Parker Purchase-Advice Needed

[kolhoznik]

I have been seriously contemplating the purchase of a Parker The shop has it as a D grade and the serial number was 102xxx and that came back as 1901 year of manufacture. The gun has 2 3/4" chambers and the tubes look great. The gun has blued Damascus barrels and the receiver is silver with nice engraving. The bottom of the pistol grip has a white ivory cap on it. The wood looks great, the butt still has the skeleton plate on it so I think its original and the engraving is sharp. The only case colors left are beneath the forearm. Lastly the lockup is very tight but I have to push the release lever right to close the shotgun as it does not stay left when I break it open. Are any of these cause for concerns? Are Damascus barrels normally blued? Can they be used with modern loads?