That is it! The seats are Linden Green, not Sahara Tan. This brings up a conundrum. The tags don't quite match what my car actually is. I'm not sure how an Oakwood Brown dash ended up in it because isn't it supposed to be Linden Green paint with Glass Green 215 exterior, and Linden Green fabric? Or am I wrong, and Oakwood Brown is correct? In any case, it looks good together, oddly enough.
I just discovered I have the three pages of the Acme Proxlin paint chips and formulae, both the C 1949 and the C 1950 versions. If anyone is interested in a particular formula of the 24 colours, I'll post the old/new variations, although I'm not sure how useful they will be unless you have access to the composition of the original numbered pigments and tints.
The only chip I cannot find is that of Oakwood Brown itself. Even the TCP Color Library doesn't have a colour chip on their site, and I think OB was an exterior 47-48? colour, and interior 49-50?
I haven't figured out how to post pictures to this Forum yet.