Have not been out here in a while but the seats were simply "brown" Leather was optional. Some of the other details on interior colors are posted here:

http://www.46chevytruck.com/IDGuide.htm

Let me know if I can help further.

Tim


Tim Sheridan
1947 First Series Chevy 1/2-Ton
"Liberty Series" - "Art Deco" - Whatever you'd like to call it.
In the Gallery