WW2 German Navy Kriegsmarine U-97 attributed officer’s uniform side cap

Dark blue wool side cap, with officer’s gilt bullion piping to centre flap, showing much wear to section either side of the cut out aluminium ship’s ‘sea horse’ emblem, which has been sewn at 3 points & which measures 36mm x 63mm. Interior shows much sweat staining and fading to brim of the interior, showing service discolouration to a portion of the inner blue satin interior. Approx. size 58. Does not look like that there was ever any eagle or cockade sewn to this cap. Comes with a copy of the U-Boat symbols used in service, with service history of U-97.