Oddly, I don't find a maker mark or French control mark on the caps, but they are sterling silver with a gold wash on the neck/collar. The caps are screw-mount and hold very tightly, and the pair would have come out of a large expansive toiletries travel set, early 1900s. They are elaborately hand/burin engraved with a monogram I really can't make out. Each flask is without damage, has the old original French stoppers still in place, and particularly the larger of the 2 is a perfect purse flask for a lady or gentleman, 1-2 stiff shot capacity. The smaller is about 1 shot capacity. I've taken Cassis along in the larger one when we've expected to order Champagne, made our own Kir Royal at the table. Such fun. But they're also just beautiful on your mirrored vanity tray, displaying your favorite colognes. Measurements are noted on the photos. for your review. Lovely His and Hers idea for a couple or gift, wedding.
Very good to excellent condition as noted above. A few dings on the old silver, which can be seen in our greatly enlarged photos, but not so much in use and with naked eye. Very smooth screw-on mounted lids. They do not leak in use, either one. Stoppers are original and undamaged, in place. Fabulous set!