A perfect one to thrown into the backpack or basket come spring for a bike ride and picnic somewhere, all the better should one have a tandem cycle to pedal! On the underside of the cup is a patent date of Feb 23, 1897--and it must be lucky, as Feb 23 is the day the I found it! The lid pops off and the cup fully extends for filling!
2 9/16" in diameter; 7/8" t when closed, 2 3/4" when fully extended. Very good condition, with just light wear/aging to the metal, more pronounced in magnified photos than to the eye. I have not touched the metal.
