WH (Heer) pair officers TSD shoulder-boards

Wehrmacht (Heer) matching pair officers' shoulder-boards piped in blue intended for a 'Leutnant der Truppensonderdienst'. The boards - which are constructed from the 'smooth' type wool never had any pips nor cyphers attached. The boards are of the 'sew-in' type and show only minor age caused by years of storage. Very nice unissued condition!