Ted,
Seems odd that it would be nitro proofed. More likely that it would have a waffen acceptance stamp, ie. E/WaA613 on the left trigger web, and lack a nitro proof. Still identifies the early captures with E/WaA613 as Preoccupation Captured Variation (p.83).
Your HP has a Belgian comrade. The Armand Gavage is a Belgium pistol that oddly has the E/N nitro proof, and does not have a waffen acceptance stamp.
Seems odd that it would be nitro proofed. More likely that it would have a waffen acceptance stamp, ie. E/WaA613 on the left trigger web, and lack a nitro proof. Still identifies the early captures with E/WaA613 as Preoccupation Captured Variation (p.83).
Your HP has a Belgian comrade. The Armand Gavage is a Belgium pistol that oddly has the E/N nitro proof, and does not have a waffen acceptance stamp.