From Insulator Wiki (Wikilator)
Hypothesis: Dark Aqua was produced at the Old Bridge plant from 1906 through the end of production in 1921
The Reasoning
1906 Start
- CD 160 STAR was produced by Brookfield after Elmer Glass Company went out of business in 1907. These STAR insulators saw a relatively short production at Brookfield, and ALL of them are the typical Old Bridge dark aqua. This established that this color was in use at the start of the Old Bridge timeline.
In the Middle
1921 End
- CD 153 BROOKFIELD and CD 169.5 BROOKFIELD were both produced by Brookfield. Both of these pieces are later production, as the new standard insulator shape was transitioned from CD 152. The CD 153/154 shape was adopted in ???.