Quoted from balt:Rally, the company that brought us Hairy Singers in 1966.
https://www.ipdb.org/search.pl?any=hairy&search=Search+Database&searchtype=quick#3133
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I recently learned of these and really have wanted to get my hands on one! I am an avid fan of Nixie tubes! They are neat little devices. I think it’s so cool someone designed a pin to use them as display