I have just noticed you posted three pictures of the Holland. The second and third show a bit more detail. On the receiver flats photo I see two rounded holes machined on either side of the bar cut out. [for lack of a better term] Looking at the barrel lumps, I can see no reason for the afore mentioned cut outs. Do you understand this ?
Secondly, in the bar cutout to our right appears a small somewhat rounded piece that appears to fit into the barrel lump and extend farther to the right. Is this part of the extractor ?
