my apologies for following y'all off topic, but these are very cool too I think..
found this thread with pictures researching the original seat in my new '71 longhorn..
called 'black cloth trim' on the spid, just shouts 70's!
hadn't seen this pattern in person myself either but I love it!
http://www.67-72chevytrucks.com/vboa...th#post8039244