This is a candy and deep fry thermometer by Springfield.
This thermometer is stainless steel and glass and measures temperatures from 100-400 degrees. It has markings for jelly, soft ball, hard ball, crack, hard crack, donuts, fish, and pot. The thermometer is watertight and can be washed with dishes.
It measures about 2.5" square and 6.5" long.
This thermometer is in good pre-owned condition.