This is Strathearn's Minature Lace paperweight. While there are several names for this weight such as latticino or muslin Strathearn just called all these (large, medium or small) Lace weights. These minatures range in size from about 1.5" to about 2.0". They generally have only nine spaced millefiori canes. These minatures were produced from the late 1960's until around 1977 as I have a Strathearn brochure/catalog dated 1 May 1978 and they are not listed as a current production item. It is not unusual to find Vasart canes in the earlier ones. Some of these were signed and dated. These lovely Lace weights were also made in other sizes ranging from small, medium, large. magnum and super-magnum sizes and a number of series were faceted and multi-faceted. Production quanities are unknown at this time.