YES	POSSIBLY	NO
Chambers	AM.TEL.&TEL.CO.	Armstrong
H.G.Co.	B & O	B
Hemingray	B.E.L.Co.	Brookfield
Jeffrey Mfg. Co.	F.M. Locke & Co.	California
Kimble	Patented Oct. 8, 1907	Gayner
Lowex	S.B.T.&T.Co.	Good
Mine Insulator		Hawley
Owens-Illinois		Kerr
Patent Dec. 19, 1871		Knowles
Patent May 2, 1893		Lynchburg
S.S. & Co.		Maydwell
Seilers		McLaughlin
Surge		Pyrex
Two Piece Transposition		Star
V.G. Converse		W.G.M. Co.
W.E. Mfg. Co.		Whitall Tatum

What if my insulator is unembossed?

Click here for a list of unembossed insulators manufactured by Hemingray.