Roy Terry wrote:

snip

Question is, can this thing be somehow dis-assembled to
replace seal to stop leaking around the handle?

Is it worth the time and trouble to attempt a repair?
The stem seal may be an O-ring which in turn depends on the brass body
to have a smooth machined surface to seal against. Unfortunately, over
the years, city water can leach zinc out of the brass body leaving a
rough surface behind that won't be sealable. OTOH, most any O-ring
size is easily available from specialists and industrial supply houses
if the manufacture can't supply one.
If the elapsed time before repair is complete is unacceptable fot
SWMBO, then you know what your other option is...off to the Borg for a
replacement set. Good luck.

Joe