Brookfield with drips

Photo courtesy Bob Berry

Hawley, PA USA // HI Co logo

Photo courtesy Bob Berry

B / Brookfield // New York

Photo courtesy Lee Brewer

Unmarked Pennycuick patent

Photo courtesy Bob Berry

star (Believed to be a GE logo)

Photo courtesy Bob Berry

star (Believed to be a GE logo)

Photo courtesy Bob Berry

California Glass Insulator Co.

Photo courtesy Bob Berry