Johns-Manville

In the 1900-1910 period Johns-Manville jobbed the insulators made by Ohio Brass, Thomas and New Lexington in addition to their own insulators made of a fibrous composition material.   . . .U-241A insulators made for J-M by Pittsburg High Voltage and  . . .multipart insulators made by . . .New Lexington.

U-241A's the last being an upside down but correctly arched marking

Characteristics: Color(s) ---Two are a distinctive reddish brown with a peppered glaze. The third is peppered brown with cream highlights Pinhole(s) --- unglazed Pinhole Top(s) --- flat penny sized indentation Fire Rested --- skirts Wet/Dry Processed --- wet Marking(s) --- incised in arch on crown "JOHNS-MANVILLE"