According to the listing on eBay this highly unusual Höfner BAT from 1960 was a prototype guitar first shown at Frankfurt in 1960, although it never went into production. The guitar incorporated a built-in amp and speaker, taking advantage of the then-new technology offered by the transistor.
Unfortunately this (lone surviving?) example of this model does not have a functioning amp, whilst several parts are not original and the neck is not currently glued in.
This guitar we might call "museum quality". It's not going to be a player, but for the collector it must surely by a very interesting piece.
Thanks to Nathan for bringing this intriguing guitar to our attention.
G L Wilson
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