On a 1967 Smiths 6B with 17mm lugs. Makes the lume "pop".
Brilliant work -- very well done. I'm impressed. (Apologies for the q&d iPhone pics, I'm rubbish with a camera.)
https://i.imgur.com/xpU4AWY.jpg
https://i.imgur.com/O8d4ejI.jpg
https://i.imgur.com/VgxIBoH.jpg
https://i.imgur.com/UeaWy6p.jpg
