I would like to see any documention you might have on Ford produced "orchard posts".
In CA windshield posts were cut off by owners to navigate apricot and prune orchards, but this was an owner action...certainly not a Ford produced part.
Think about it...in 1942 or 1951 do you really think a busted farmer would pay for a chrome folding windshield? I don't think so...
Typically they just took the windshield off, posts and all... no need for a windshield in an orchard.
Folding posts for a '28-'29 open car are aftermarket, likely from Western Auto, or one of the early '50's hot rod suppliers like Bell Auto Parts, etc.
The Ford factory issued folding windshield posts for a Model A open car first appeared on the '30-'31 DeLuxe open cars and were stainless steel, not chrome.
>>The listed folding windshield posts are nice, cool, and a rare accessory, but they ain't from the Ford factory; they are aftermarket accessory parts. Enjoy at will.