Easily the rarest cocktail shaker that I’ve come across. Marked E&JB Nickel Silver, PAT. May 18, 1926. The patent was held by William L. Bass in the middle of prohibition, for the “Convertible Liquid Container.” The actual patent with illustrations is up for view at the Museum of American Cocktails website.
This model is what is pictured on the original patent, however the applicant stipulates that the patent could be applied to liquids hidden in “loving cups, water pitchers, vases, or similar articles.” That is to say he was awarded a patent not for the design but for the concept of hidden cocktail shakers in the middle of prohibition.
Four piece construction. The loving cup unscrews from the stem/base which conceals a removable lid/pour. That stem conceals a gorgeously engineered juicer/strainer with a cork rim that fits snugly into the actual base with an indention for the tip of the juicer. A drink is prepared by adding the stem to the top of the loving cup (and the cork fits snugly there too) and poured from spout.
Incredibly generic engraved name plate / award on the front to add to the charade. Very nice condition, slight loss of plating to plaque. Nothing else. SOLD.

