Mike,
That pic would POSSIBLY be of help in determining if the barrels were "lined," (but only if it were in focus!) but it is the wrong view to determine if they were "sleeved". The term "sleeved" means the ribs were stripped off, the original barrels cut off just in front of the chambers, then the chambers bored-out to accept new barrels that are soldered in. Then the original ribs are re-laid. Since the new tubes are almost invariably blued fluid steel, not damascus, the situation arises where one has an original rib that says "Damascus" but the gun actually has blued steel barrels (except for the chamber section, which is still damascus on the outside, but re-blued to match the new tubes grafted on). It takes a real artisan to hide the line where the new tubes meet the old chambers, but it can be done. Most sleeved guns show at least a little bit of a tell-tale line in the form of a hairline band around each barrel just about where the chambers end. This is where the new meets old. A useful picture to help determine would be a close-up (and in sharp focus) shot of about the first six inches of the outside of the barrels at the chamber end.
If your barrels are in fact still original damascus that has been blued-over, you should be able to barely make out a little hint of the fingerprint-like damascus pattern hiding underneath the bluing. But remember, just because the ribs say "Damascus" doesn't mean they still are (i.e. sleeved barrels).
I wasn't saying that your barrels aren't damascus, just that if they are BLUED as you stated, that you might want to check to SEE if they have been sleeved.
Jim
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