GS-5750-5999

Eggs 184mm (7.25") and larger
 
GS-5985

GS-5985
GS-5985
Size: 241mm X 158mm (9.5” x 6.25”)
Example in Photo: Taylor Tunnicliff & Co (England)
Photo Credit: Anonymous
Direct link to this insulator:
ManufacturerInsulator MarkingsColorCountry
Taylor Tunnicliff & Co(Incuse) (Taylor Tunnicliff & Co logo)Light BrownEngland
 
GS-5990

GS-5990
GS-5990
Size: 285mm X 228mm (11.25” x 9”)
Example in Photo: No Name (Germany)
Photo Credit: Anonymous
Direct link to this insulator:
ManufacturerInsulator MarkingsColorCountry
UnknownGrayGermany