The brass clasp is by Quincaillerie du Soleil/Compagnie des Clous Au Soleil and has their sun hallmark on the front. The brass locking mechanisms are marked "Surete". The brass handle findings are marked Bte S. That ceased to exist in 1968. The name was a common abbreviation for.
Breveté Sans Garantie Du Gouvernement. All corners and edges are finished in a rich vellum with a patina that illustrates its wonderful age. While there are no definitive makers markers, this trunk is expertly made and exquisite.
Happy to share additional photos as well. The item "Exceptional Antique French Travel Trunk Steamer Vintage" is in sale since Friday, April 2, 2021. This item is in the category "Antiques\Furniture\Trunks & Chests". The seller is "gratefyl" and is located in Baltimore, Maryland. This item can't be shipped, the buyer must pick up the item.