As one of my Nixie Tubes failed, I decided to remove it's glass encasement, to get a better look at the internals.
The tube is a IN-12A, from the former Soviet Union.
If you click on the pictures a larger picture will popup.
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56.2%
United Kingdom of Great Britain and Northern Ireland
17.6%
Unknown
10.6%
United States of America
3.3%
Singapore