U-1792: Russia

3 3/8" X 4 5/8" (83mm X 113mm)

 

 (ink stamp on ear) 1876 "in a circle"

 

 

Picture courtesy Bill Ostrander

3 3/8" X 4 5/8" (83mm X 113mm)

 

 (ink stamp on ear) 1876 "in a circle"

{side view showing embossing & hole}

 

Picture courtesy Bill Ostrander

3 3/8" X 4 1/2" (83mm X 110mm)

 

 (ink stamp on ear)

                                TBA M.C.K.

 

Picture courtesy Steve Coffman

3 3/8" X 4 5/8" (83mm X 110mm)

 

 (ink stamp on ear)

                                TBA M.C.K.

 

Picture courtesy Steve Coffman

U number assignment from Worldwide Porcelain Insulators by Marilyn Albers & Jack Tod.


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