Where to aquire wheel centres for 'Formula-1' minilights

[ausdilecce]

Hi All,

I am wondering if anyone can point me to a source for wheel centres (chrome) for 'Formula-1' branded minilight wheels for my 1970 1750GTV.  It seems that two of the four I had are now sunning themselves (as best as one could) on a grass verge somewhere in Tassie.

Please find attached a pic of one of the ones I have left.  OD of the clip side is 78mm.  They don't need to match exactly what I have.

Thanks in advance for any help

Cheers
Frank