I found some 26.8 posts, NR
QAll in excellent condition, with full original engravings, choice of alloy or steel cradles an any .
Used - 2 $60 each choice of 'max height' inscription with hash marks or ''limit' with hash marks ( Here's a whole new category for a time-line, post markings)
New - with some 'bag marks' (a term from coin collecting) NO minimum insertion notations of hash marks $80
New in box, never been in a frame, $100 no marks The box holds dozens of 2x2 color slides with the post removed
There are several dozen 27.2's and they go for much less, i know.
I also found many 25 through 27.4 while I was looking, but I can't mention them til I come up with a price.
Larry Black