Hi Ripster , and thank you !:thumb:
But without giving you an headache can you tell us, at least, if you've ever see a similar one in any vintage keyboards ?
Anyway, Rispter thank you for having create the alps wikki.
i hope a member of this forum will have the answer of this thread :pray:
But of course, if i find any others info outside of this forum i will report here if it can help any other member.
Thank you