1970 dark saddle armrest
 

My firebihas been I family since 76 and thos is my question. My original arm rest is leather and has a dark saddle color pattern. I seen an 81 dark saddle firebird with same lid. they are different than black for sure and like to know history and years behind the lid and where to find 1 in.good shape for my 70 formula 400.

1970 Saddle interior color is not the as the dark chocolate color used on the dash assemblies & consoles in '81 "two tone" interiors. The '81 color is much darker, have also parted several 70 Birds with both Sandalwood & Saddle interiors. Up until an old friend bought a new '83 Z-28 I regularly worked on his loaded '81 SE Turbo with that color combo interior. Also have had two 81 Bird partscars with the light Pimlico pattern seats & dk chocolate dashes & consoles.

Leather was never used in any 70 second gen interior. If it’s leather it’s not original

Find a nOS hoarder.
I have. New lid in the GM box, but it’s not for sale

Dark saddle lid
 

this is my lid came with car and had car since 76. I assume it's stock but I might be wrong. We bought car used and I. thinking that original owner bought it off showroom floor and it was used as a display model.

Without a doubt that is NOT a factory original console lid. They were ALL vinyl in '70 regardless of the color.
Your best option is to locate a black one and dye it to the brown you want.