I think the older Gaillards had the reeds mounted on leather

I think the new ones are waxed reeds but I do not know for sure

One of my favorite sounding Gaillards is Yann Fanche's older 2 1/2 row in A/D

this was before he standardized his designs and shortened the 1/2 row

That's a cool looking one row with four stops. Years ago, I played a weekend music camp at Chesapeake Bay. There was a guy there with a Canadian built box that had corners that were rounder than that and the keyboard was ergonomic. For years, I thought it was a Melodie, but I have not seen another one like it.

The Mélodie has rounded corners, but so do Simard's boxes. Normand Miron build ONE box with rounded corners, which he sold to an amateur player who may have since sold it -- it was a great box but with a rather strange keyboard (hard to describe).
-Andy