Brookfield CD 147 [030] Spiral Groove Aqua Glass Insulator 1907 Crude Bubbly For Sale

Antique Brookfield CD 147 [030] Spiral Groove Glass Insulator – Patented Oct. 8th 1907Nice early Brookfield CD 147 spiral-groove glass insulator in an attractive aqua/blue-green color.Embossing reads:PATENTED
OCT. 8TH 1907This embossing configuration corresponds with the CD 147 [030] Brookfield variation documented by insulator collectors.The glass has excellent early manufacturing character, including numerous bubbles/seeds, pronounced swirling and flow lines, waviness, and crude tooling characteristics. The heavy glass and spiral-groove design display especially well when illuminated or placed near a window.This example has considerable age-related surface wear, scuffs/scratches, staining/residue and manufacturing irregularities. Please examine all photographs closely. There are small edge/rim imperfections as pictured. The prominent lines visible through the dome/body appear consistent with the crude manufacturing character of the glass, but I have photographed them clearly so the buyer can make their own assessment.Details:* Manufacturer/attribution: Brookfield
* CD Number: CD 147
* EIN/variation: [030]
* Style: Spiral Groove
* Embossing: PATENTED / OCT. 8TH 1907
* Color: Aqua / blue-green
* Early 20th-century utility/telegraph glass
* Heavy bubbles, seeds, swirls and glass flow character
* Authentic antique glass insulatorSold exactly as pictured. Photos are part of the condition description and show the embossing, base, interior, glass character and imperfections from multiple angles.