Number three is reddish orange, 6 cm high (2.1/2") and 9 cm diameter (3.1/2"). It has a clear casing, and a clear rim. The underside is polished to a reasonable standard. Not quite Murano quality, but almost.
On the side it has an etched or sanded mark in tiny lettering which says "Land". Now there is a flat glass maker in Venezuela by that name - but I don't think they did this. Does anyone have a better suggestion?