Originally issued as a "mini ornament" by Thomas Glenn Holidays, the original coloration in blue was also introduced in the larger 4 inch (100 mil) size.  This prototype in green - also in the 4 inch size did not make it into production.
The "Oxford - Green" Ball Ornament
Part of the Christmas Past collection
Handcrafted in Poland
Made from glass
Approximately 4 inches tall (10cm)
Made by Thomas Glenn Holidays