Summary: Japan plus East German 2 and 1 3 tubes picture from Jorgen Lund Nielsen Burroughs B7971 2 5 alphanumeric tube Okaya CD13 0 3 subminiature tube as used in my nixie car clock Three end viewed nixies 1 STC GN 4D 1 3 Cintel Cathvisor N I 7 1 5 STC GN 5 sizes are bulb diameter
Image Dimensions: 131 x 197
Image originally found here.