Can anyone decode these numbers for me?

Left front cowl

12B Lansing
Style 62 - 3839
Body LA 4372
Trim 375
Paint L-C

ACC-493-555-622

 

The 12B means assembled the second week of December. Given that your car is a '62, this would be December 1961.

The 3839 is, I believe, the series and body style (it's the same as the first four digits of the VIN, I think).

From this we can tell that you have a Ninety-Eight Holiday Sports Sedan (4-door hardtop?)

Trim 375 means a red pattern cloth (called Moroceen) with red carpet and white headliner.

Paint L-C means is, I believe, "garnet mist" (kind of a dark red) main paint color (the L) with "provincial white" trim (the C). Does your car possibly have a primarily red body with a streak of white down each side?

BODY LA 4372 is the body sequence number at the Lansing assembly plant.

As far as the accessory codes, 493 = electric antenna and "bi-phonic" speaker system. 555 = white sidewall tires and air conditioning. 622 = electric 6-way seat.

Since you apparently have a '62 Olds, you REALLY should check this site out (it's where I got all the above info!):

http://home.comcast.net/~oldsfan/MySite/62oldspage.html

 

Great help, thanks.

 

Glad to help. I am curious. Does your car have the paint scheme I mentioned, or did I not interpret the code correctly?

 

It looks like the way you describe it, except for the white stripe.

 

Interesting. I had the impression it might have looked like this.

 

I wish it was that clean