However, since they were found in a crockery cupboard, this photo specifically refers to silver thimble spirit measures (or thimble shot glasses).
History: Made popular in England during the late 19th and early 20th centuries, these oversized, thimble-shaped silver cups were used as novelty barware for measuring or taking shots of spirits (usually rum or whiskey).
Markings: They frequently featured engraved comedic phrases around the rim such as “Just a Thimble Full” to humorously play down the size of the drink.