Touzalin, when googled, appears to be a French name, Dave, but I have no other information.
I have also posted it on Bernie Levine's forum, so maybe something will come up.
Maybe
Jolipapa
or @Achillepattada can find something??
Sorry, Charlie, but I did not find any mention of that name in Thiers cutlery directories, the oldest dating 1911. (
http://www.marques-de-thiers.fr/docus.html)
It may also come from another place, Nogent or even from Belgium, Gembloux was once a cutlery place, though Touzalin sounds rather like a Southern name.
Another possibility being that the name may belongs to a shop rather than a cutler, the laters most of time had symbols as trade mark.
PS I found several Touzalin in Chatellerault and Poitiers, the first was a very important cutlery city before WWI, since the Renaissance (the cutlers corporation's charter dates of 1571). It was famous for high end luxury swords and knives, made by casual cutlers, whose work was sold by peddlers to travellers en route to Bordeaux.
Pagé, Piault, Limousin and Mermilliod were famous cutlers families.
Camille Pagé wrote an important book on cutlery, knives and steel.
In the middle of XIXth century, Eugène Mermilliod, owner with his brother of the Prieuré de Cenon plant, was not pleased by the quality of the blades made by the Smith method. He created his own machine, who allowed for high quality mass production at low cost.
He used to sell his products to stores, not only to armories but also to hardware stores. There was no trademark but the the store often stamped his name.
Touzalin may have been one of those providing tools to the many market farmers around.
Most of the independant workers went to work at the
Manufacture d'armes de Châtellerault, abbreviated to MAC ("Châtellerault Arms Manufacturer"), when it was created following Napoléons's defeat, where they had much better wages and many advantadges (retirement at 50 after 30 years of work).
This and the railway contributed to the slow but total demise of the cutlery in Chatellerault, the last company
Coutellerie Chatellerault - Domine et Ets Duteils stopped making knives in 1954.