The intersection of 33rd & Columbia is already fully ADA compliant, but two of the stamps on the SW corner were saved.  Well one-and-a-half, really.

Stamps are:

& HENRICHSEN 1919
(originally HENRICHSEN & HENRICHSEN 1919)
RAYMOND 1957. (latest date found)

As noted on the 32nd & Columbia page, there is another RAYMOND 1957 at the alley between 32 & 33.