U-1784: Russia

2 3/8" X 3 1/2" (58mm X 86mm)

 

 

 

No markings

 

 

 

 

Picture courtesy Bill Ostrander

2 1/4" X 3 1/8" (55mm X 78mm)

 

(front crown inkstamp)

Т-ва М.С.К.

{Matthew Sidorovich Kuznetsov}

 

Picture courtesy George Sukhoff

2 1/4" X 3 1/8" (55mm X 78mm)

 

 

(ear ink stamp)

 

 

 

Picture courtesy Bob Berry

2 1/4" X 3 1/8" (55mm X 78mm)

 

 

(ear incuse)

 

 

 

Picture courtesy Bob Berry

2 1/4" X 3 1/4" (56mm X 83mm)

 

 

(ear incuse)

 

 

 

Picture courtesy Bob Berry

2 3/8" X 3" (59mm X 76mm)

 

 

 

No markings

 

 

 

Picture courtesy Bob Berry

   

U number assignment from Worldwide Porcelain Insulators by Marilyn Albers & Jack Tod. Note that this has holes in the ears for a tie wire.


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