I sent an email with the pictures of your guitar to Jack Marchal at the Fetish Guitars site. Here's his response.
"Wow, this is very strange! Never seen anything even remotely like that.
That thing shows a strong West German parentage. In addition to the DIN output socket, the visible part of the vibrato shows clearly it's like the device used by Klira in the early 60's.
(see:
http://www.fetishguitars.com/html/misc/ ... _jack.html )
The guitar is obviously very well made. Maybe a one-off concoction, but not a home-made assembly. Built to professional standards. Except for the fretboard: why only 19 frets? Only the cheapest guitars (like my Klira...) had less than 21.
As for the fretboard, the similarity with the Höfner 4575 from the early 60's is impressive. Just the same specific inlays. Except all Höfners had 22 frets...
It would be interesting to check if the binding at fretboard end shows any discrepancy with the edges along the neck. If any, it would provide a hint that it was indeed a Höfner fretboard that has been cut to a shorter length.
Pickups are a pure mystery to me. I don't remember I ever saw this model elsewhere (but I have yet to check all my photo archive).
Body construction, with an arched carved back and a flat top, is reminiscent of Eko 400 'Ekomaster' series.
There always were rumours the company Melodija Menges of Slovenia was involved to some extent in manufacturing the very first Eko guitars, which also have strong similarities with various Höfner solidbodies.
(About the hypothetic connection between Eko, Höfner and Melodija, see
http://www.fetishguitars.com/html/eko/4 ... ofner.html "