USED pre-1980 chrome letters: D,I and Y

Got a little project and almost all the letters I need (and a few I don't) to complete it.  The letters I'm after are the sort that are individually placed on the bonnet or boot (see Humber below for reference). I'm short on three letters that I'm struggling to find: D, I, Y

MUST be metal, not plastic
MUST be individual, not broken from a larger badge
MUST be pre-1980

ANY model or make
ANY font type
ANY colour (chrome preferred)
USED for preference
Pitting and tarnishing WELCOME
Broken pins not an issue!

I know I can easily get post 1980 or even brand new stick on letters, those would be unsuitable for this project, hence my ask for the above.