58 fleetside paint color

[our6t4]

Have a 58 fleetside with big window,stainless trim package
The tag on the door jam states paint as (now i can't remember the exact word,but means special). The original paint color is a gold/brown.
What's so special?

[droptop62]

Could have been a special order color not available as one of the stock colors on the order form for the 58 model truck.
post a picture of the tag.