If you decide it should be ivory Brian Hilton has recently painted the wheels on his sedan so will be able to advise. His look wonderful.
On Frank's recommendation I took myself off to A.R.Motor Factors Baldock to see if we could track down the right colour for my series 1 2c Berlina wheels.
I still had one of the wheels that was the spare at the time, and which hadn't been used when I bought her, so I took this with me, it took best part of an hour using the swatches to find a similar colour, on checking the code against their computer it turned out to be a fiat colour, however digging a bit deeper the assistant found there was a period Lancia colour listed as well.
This turned out to be 'Lancia 228 Avorio' Lesonal base. Mixing ratio: Y shade, can size ASL.
Two spray tins were made up for me, Modern paint now I found dries to a matt finish and then has to then be sprayed with a lacquer coat, or more than one coat, to get the gloss finish.
I was extremely pleased with the match and the finish, but be warned, you really need to spray the lacquer in particular, outside, and if possible use a good mask as it's pretty toxic.
Have a look here for the story and the finished wheels, I'm very pleased with the result and I'm sure it's about as close as you're likely to get to the original colour.
http://www.lancia.myzen.co.uk/forum/index.php?topic=7913.15Brian
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