Looks like they were never imported to USA, so your pair (if in USA) 'probably' brought here by a serviceman from Germany..
Anyway, Google gives only German sites, and German eBay has some.
You'd have to check out some German sites to find any answers, unless some old dude who also brought some back happens to also be a member here. (very very low chances..)
Anyway, Google gives only German sites, and German eBay has some.
You'd have to check out some German sites to find any answers, unless some old dude who also brought some back happens to also be a member here. (very very low chances..)