Bob, as someone mentioned, Paul Sellars has a tutorial, or, Heritage Homestead
is just up the road from you in Waco and I would bet there are people there who
can and would sharpen them.

I use a fine triangle file to sharpen all of my old Wiss scissors, the learning
curve wasn't very steep.  And I am able to get a fine edge on any old inlaid
steel scissor now.

BUT...doing anything to the inside face of the scissor halves is fraught with
peril.  Trying to hone that face may do far more damage than good.  The two
haves are in many cases gently curved towards each other and messing up those
inside faces may cause the two haves not to meet any more. I don't mess with the
inside faces at alll.

Brent A Kinsey