Here is a vintage sterling silver roll over (a/k/a bottoms up, tipping) style jigger marked “Tiffany & Co. Sterling m”. The ” m ” mark is a date mark and dates this jigger to the period 1907 – 1947, under the directorship of John C. Moore II.
It measures approximately 5 and 5/8 inches across including handles. The diameter is 2 and 1/4 inches wide. The top diameter of the cup is 1 and 1/8 inches. It weighs 57 grams. It holds one ounce to the first line and two ounces when full.
I believe the earliest patent for this roll over type jigger was Patent No. 115831 for ” Measuring Container”, dated July 25, 1939, obtained by H. B. Kaempf. This type jigger was offered and advertised as “Host” and “Hostess” jiggers with the “Hostess” jigger holding 1 ounce (offered in silverplate) and the “Host” holding 1 and 1/2 ounces ( offered in either sterling or silverplate). I don’t know who actually manufactured these “Host” / “Hostess” jiggers. Just wanted to provide a little history! Tiffany & Co. leadership apparently liked this concept as they produced their own variation (this jigger) in the 1940s.
Various publications in the 1960s called this jigger a “Tipsy Jigger”. The Dec. 13, 1960 Asbury Park Press called it that and said ” it fits over the glass and tips to pour”. The 1961 Independent Star News, in their “Sterling Ideas for Christmas” ad called it a “Tipsy Measuring Jigger”. The June 13, 1963 Spotlight publication called this a ” Tipsy Jigger ” in a Frank H. Adams ad and included an illustration of how to use it.
This jigger is available for sale here at my Etsy shop: https://www.etsy.com/listing/630424757/tiffany-co-sterling-tipsy-jigger-1940s