Hi Ed,
* Likely WaA286 on the holster.
* Carl Busse, Fabrik f�¼r Heeresa�¼srustungen aus Stoff und Leder, Mainz, Kurf�¼stenstrasse 11 {in 1941}.
* In Sept. 1941, Busse's code became "jkh" and subsequently, in 1942, the WaA sub-bureau number changed to 927.
* The down lined eagle on the right side of the barrel is the barrel's
proof mark and the droop(down-wing)eagle/63 on the barrel's left is the
Army Inspector's acceptance mark.
* Hope this helps.
Respectfully,
Bob