From Grade 2 and on up through the higher grades, Smiths with Nitro proofed barrels had a half-moon witness mark milled into the top and bottom ribs- I suspect the gun has amputated barrels, also the rust patina and the badly boogered bushings for the firing pins and the copper retaining machine screws for same tell me- test dry-fire this older rotary disc joint check style Smith against a pine wooden block (assuming you have the proper re-cocking tool) and check for both depth and uniformity of penetration into the wood (about 3/32" is max- 1/16th is average for good pins-- Also check the three position safety and the triggers pulls-and remove the lock plates to check the inletting of the stock jaws- If all this checks out, and the 28" barrels are kosher, maybe $500- more like $400 in my book--
