After looking at those pictures again .......... me thinks you have a "
marriage" there.
The shoe last and the stand were never meant to go together.
Reason 1: the last has a
square stem and the connector (union) on top of the center extension shaft has a
round hole.
Reason 2: the twist knob on the stand is made for “raising & lowering” the center shaft of the stand …… which would “raise & lower” whatever was inserted into the connector (union) on top of the center extension shaft.
Reason 3: shoe cobblers pretty much always
sat down when working on a pair of shoes, ….. and as pictured that “last” would have been
too high for most cobblers to even use, let alone extending it up any higher than it is pictured.