Day 31-Sea Green
A second example of Sea Green should help you to identify this color. Below is a shot of the “BLENKO” etching that indicates a manufacture date of 1958, 1959 or 1960. Blenko introduced this etching sometime in 1958 and continued it until late in 1960. Once I have shown all of the water bottle colors made during this time period I will show a list of these colors for reference.