Some Mosser collies were made for and sold by Rosso glass. Technically, these are Mosser collies, as they use the Mosser molds, however they were not sold by Mosser or listed in the Mosser Glass catalogs. Some were special customer orders. These are new pieces, many made long after Mosser themselves stopped producing the collies. They have the “M” on the left side, none of them have the “M” on the bottom.
Mosser Collie for Rosso Glass – Airbrushed with sand carved bats
Known colors include:
Butterscotch (all)
Royal Plum Opalescent (all)
(New) Amber, Amber Satin, Amber Carnival
(New) Green, Green Satin, Green Carnival
Orange Marble and Orange Marble Satin (similar to Pumpkin but brighter – made in 2018 or 2019)
Lemon Yellow and Lemon Yellow Satin (2020)
Anything with sand-carved decoration (Sand carving is a Rosso specialty – they have produced decorated sand carved pieces for other glassmakers including Fenton.)
Combo finishes (?)
Airbrushed pieces (?)
And there are probably more
Orange Marble:
Lemon Yellow: