Each dish stands 2" tall, 5 ¼" wide at the rim and 2" wide at the base. The dishes appear to have been made by pouring glass mass into a mold and applying an industrial press. The dishes do not bear the maker's mark but the manufacturing technique and details of design are strongly reminiscent of the 1KDO Glass Factory which, in the 1920s-50s mass-produced household glassware to meet the growing demand of the young Soviet market. Manganese glass is also known in Russia by its "common" name, "карамельное стекло", (caramel glass).

In excellent superb condition. There's only minimal use wear in the form of tiny scuffs and hairline scratches on the bottom, hardly noticeable and not at all detractive. One of the dishes features a number of unusual horizontal lines, clearly not post-production and probably caused by a defect in the mold.

The name of the factory, "1КДО" (1KDO) is the acronym of its full name "имени Первого Коммунистического Добровольческого Отряда" ("First Communist Volunteer Unit") given it after the October Revolution. Before then it was well-known in Russia as one of the two glass factories of the Kurzhenkov brothers, who founded it in 1878 in the village of Malaya Vishera in the Novgorod Region. The factories specialized in household and commercial glassware.

Please note that the teaspoon is in our photo for size reference only.