Truly used- and/or worn maker- (ie. 'L/…'?-) marked example of a black-class wound-badge (or: 'Verwundeten-Abzeichen in Schwarz')

The neat - and clearly used- and/or worn! - black-class wound-badge (ie. wound-badge (or: 'Verwundeten-Abzeichen in Schwarz') has lost some of its original, black-coloured- and/or somewhat 'shiny'- ie. satin-like finish: it shows moderate wear and usage. The wound-badge is - as stated above - neatly maker-marked with an LDO-makers'-designation that reads: 'L/…' in a box (as is visible on the back of the badge as can be seen on the pictures). Regrettably could I not identify the exact LDO-designation: this is hard to decypher. Of course, are the (longer-sized- ie. thin-shaped- and/or magnetic) pin and/or: (typical) catch (-set-up) fully functional and of course present. This piece has never been cleaned nor polished: it shows some minimal dust and/or minimal staining as to be expected.