Salt Bottle or Scent bottle in a crystal vial with lovely Champleve enamel on top. There is a little fogging to the inside of the crystal bottle, but salts do that to glass. Made in 1850-1880. The enamel is perfect. There is no glass plug, but likely had one when it was new. Salt crystals would go in these bottles and when a women would get close to passing out, due to tight corsets, hot weather, or bad odors, she would take this out of her purse or handbag and sniff it which would keep her from fainting. The salts are not like your table salts! The salts are made with ammonia.
The glass on this is thick seems to be crystal. One teensy chip that can be felt but not seen on one edge of the octagon shaped bottle. The top stays on well and opens and closes just fine. Many people might think it is a perfume bottle but because of the large opening it was made for salts.
It is 3 1/4 inches and heavy for its small size. Great collectors piece. Likely French as the enamel is Champleve which is a French enamel that was made between 1850-1880. Perfect enamel.