M1900 DWM Bulgarian Luger

[Ron Wood]

It might very well be true, but I am a bit dubious that it was obtained at Dachau. Most of the conversions of the 7.65mm Bulgarian pieces to 9mm were performed around 1911 when Bulgaria purchased their Model 1908 Lugers in 9mm. Not all of the armament was destroyed after WWI, a lot of it was warehoused. There were a few surviving 7.65 guns that were converted during the Nazi era and during the 1960s a number of Bulgarian guns were imported into the US. Many of them were not in good shape so they were "parted out" and you will often see Bulgarian parts that have been mixed with other parts to make a complete gun. Dwight Gruber has recorded 37 serial numbers for surviving 1900 Bulgarian Lugers...yours will make 38.
You have a pretty desirable gun and considering its collectable status, I would recommend that it not be fired. An all original piece is hard to come by and if you damage a numbered part the value drops like a rock.