Rare dealer option, maybe? desirable, not unless you are husky, fluffy, big boned or have a good sized lunch muscle
These are dated 1968 and came out of one! The only set I have ever seen, I have spent a lot of time researching and have found Nada! My Dad has been buying/building/parting these trucks for over 30 years and has never owned/seen another set.
$50.00 shipped, this might be a heck of a deal?