Serial number is 28559, Watertable shows "D30" on left - "22" on right & serial number. Bottom of barrels simply have "C".
I have the reprint 1908 Sears catalog, I assume it is the gun on page 704 - No 6K22- Genuine Two-Blade Damascus Liege Imported Barrels - $17.35. (AJ Aubrey "Field Grade?")
Any other information, insight or date of production you have would be appreciated. Thanks! Doug