1Identify

Preliminary identification

High-Voltage Porcelain Pin Insulator, c. 1930s-1950s

Photo reference

1 uploaded photo

Overview

This is a heavy-duty, multi-tiered porcelain insulator finished in a classic 'chocolate' brown glaze, designed to carry high-voltage power lines.

Story

During the massive expansion of the American electrical grid in the early to mid-20th century, these ceramic sentinels were the unsung heroes of the landscape.

Maker / Origin

Companies like Locke Insulator Corporation and Ohio Brass were the titans of this industry, perfecting the 'wet-process' porcelain technique.

Condition & Value

The glaze appears mostly intact with some minor surface scuffing and 'flea bites' around the edges, which is typical for an item that lived outdoors for decades. Common brown porcelain insulators are widely available; value is driven by size, specific manufacturer markings (often found on the top or incised on the bottom), and…

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