The sulphide is superb quality. The weight has been re-polished at some point (just too pristine!!). Exact same sulphide as the two illustrated (see later).
Baccarat made a variety of sulphides other than portraits - I've seen a Joan of Arc; Hunter with dog; posy of pansies; but all seem to medallion-types.
One of the 'carp' sulphide illustrated in Paul Hollisters "Glass Paperweights of the NYHS" does have a garland of alterating canes. The illustation isnt great, nor is the illustration in the Sotheby's catalogue of the collection. My initial thoughts were the canes looked more Murano-like than St Louis....
The collection was acquired prior to 1965 so I guess it pre-dates this!! Other than this I'm stumped!!!
Belgium or stryia/Bohemia seem plausible....