Machine-embroidered WH (Luftwaffe) trade- ie. special-career-patch as was specifically intended for: 'Seemännisches militärisches Bootspersonal'

This is a neat - and 'virtually mint' - example of a WH (Luftwaffe) machine-embroidered so-called: trade- ie. special-career-patch (ie. 'Laufbahn- o. Tätigkeitsabzeichen') as was specifically intended for: 'Seemännisches militärisches Bootspersonal' (ie. LW-related vessel-staff) and that comes in an overall very nice- (ie. possibly issued- albeit never worn- nor tunic-attached- ie. 'virtually mint'-), condition. The patch shows two 'wings' and a centered anchor as both executed in silver-greyish linnen on a typical LW-type background. The patch is neatly machine-embroidered in greyish-white-coloured linnen on a bluish-grey coloured- and/or woolen-based background. The patch - that shows an additional, black-toned- and linnen-based backing as is more often encountered - shows simply no wear nor age. Simply a neat WH 'Luftwaffe' trade- and/or special-career-patch that will be impossible to be upgraded!