Porcelain Insulator Markings

A.E.R. (Canada)
Algoma Eastern Railway

A.E.R. Logo

AI (England)
Allied Insulators

AI Logo

API (Australia)
Australian Porcelain Insulators

API Logo

Bulgaria (Bulgaria)

Bulgaria Logo

Bullers (England)

Bullers Gisborne Pattern Logo
Bullers GWR Logo
Bullers LMS Logo
Bukers LNER Logo
Bullers Ltd Logo
Bullers Logo
Bullers Logo
Bullers Bros Logo

CP (Canada)
Canadian Porcelain

CP Logo

C.P.R. (Canada)
Canadian Pacific Railway

C.P.R. Logo

C.N.R. (Canada)
Canadian Northern Railway

C.N.R. Logo

DIA (Australia)
Doulton Insulators Australia

DIA Logo

Dalian Insulator Works (China)

Dalian Insulator Works Logo

FIL (Italy)
Fabbrica Isolatori Livorno
(Livorno factory Insulators)


Manufacture Embossings:
FIL
Lot Number - Year

FIL Logo
FIL Logo (Date)

G.F. (Australia)

G.F. Logo

G.P.O. (Ireland)
General Post Office

G.P.O. Logo

Johns-Manville (USA)

My Image

KP (Australia)
Koster Potteries

KP Logo

NP (Canada)
National Porcelain

NP Logo

R.F. LTD (Australia)

R.F. Logo

Richard Ginori (Italy)

Richard Ginori Logo

S&S (Canada)
Smith & Stone

Smith & Stone Logo
Smith & Stone Logo 2

Sunshine (Australia)

Sunshine Logo

T & NO RLY (Canada)
Temskaming & Northern Ontario Railway

Temskaming & Northern Ontario Railway Logo

Verbano (Italy)

Manufacture Embossings:
Verbano Logo
Month - Year
Lot Number

Verbano Logo

A - B - C - D - E - F - G - H - I - J - K - L - M - N - O - P - Q - R - S - T - U - V - W - X - Y - Z