Neon counting was compressed down to a single tube in the Dekatron.[1] One Dekatron could count from 0 to 9, so only one Decatron per decimal digit was needed.

Can be see in "Hot Rod Girl" at 00:25, as part of a racetrack timer.[2]

[1] https://display-tubes.org/dekatron/

[2] https://archive.org/details/hot_rod_girl_1956