Rare M34 overseas cap with insignia for Panzerpioniere

Rare original M34 cap for a Officer in a Panzer Pionier unit. The sidecap is a textbook EM/NCO example with wartime sewn insignia that was wartime upgraded for a use by an Officer. Nicely marked 55 F42 Karl Kubach Mützenfabrik Mainz-Kastel inside. Perfect example with a very rare soutache or piping for a Panzerpionier that would be very hard to upgrade!