Dimensions: 3.375 inches wide x 1.5 inches thick
There is a glazed 3/4 inch diameter straight hole through one "arm."

Marking: (in ink on unglazed front surface)

Color: Chocolate or sky glaze.

Dimensions: 4.625 inches across x 2 inches thick
There are glazed 3/4 inch straight holes in each "arm."

Marking: (in ink on unglazed front surface)

Color: Sky glaze.

Dimensions: 5 inches across, 5.375 inches tall, 1 inch thick.  The three holes are 5/8 inches in diameter.

Marking: (None)

Where used: Several of these were found in the obsolete materials bin of an electric company office near Guelph, Ontario, Canada.

Dimensions: 6 inches across, 5.25 inches tall, 2.25 inches thick.  There is a straight hole 1.125 inches in diameter that runs through the side of the long "arm."  The three holes in the front are 1/2 inch in diameter.

Marking: (in ink)

Color: Dark chocolate

Dimensions: 5.25 inches across x 4.5 inches tall x 2 inches thick.  There is a straight hole 3/4 inches in diameter through the long "arm" of these.  The four holes in the front are 1/2 inches in diameter.

Marking: (recessed embossed)

Colors: Dark chocolate and sky blue

Where used: Several of these were found in the obsolete materials bin of an electric company office near Guelph, Ontario, Canada.

Notes: The four white spots on each insulator are the firing rests.

Dimensions: 5.875 inches across, 5.5 inches tall, 1.25 inches thick at the thickest part.

Marking: (embossed)

Color: Black with an aluminum eyelet.

Dimensions: 5.75 inches across x 4.875 inches tall x 1.625 inches thick at the thickest part.  The three small holes in the front are 3/8 inches in diameter.  The large hole in the front is 3/4 inches in diameter.  A hole running through the center of the side is 5/8 inches in diameter.

Marking: (embossed)

Maker: Hendricks Wire and Cable Company

Color:  Black with an aluminum eyelet.

Spacer #8
Polyurethane 4-wire spacer, delta shaped. This piece looks similar to spacer #1 but with an indentation in the center and an extra wire groove.

Dimensions: 4-11/16" height x 1-1/4" thickness. Holes are 13/16" in diameter. The end saddle grooves have a 11/32" diameter curve.

Marking: From a 1991 catalog page, it appears the insulator has a PLP logo marking.

Maker: Preformed Line Products, Cleveland, OH

Color: Grey (Sky)

Notes: This is Preformed Line Products catalog No. 5060100. They call it a Cable Separator. It weighs 10 oz. "High dielectric strength suitable for up to 750 volts."

Spacer #9.
Polyurethane 4-wire spacer, delta shaped. The outline of this piece is shaped like Spacer #8 but with a 1" diameter hole through the top and three 5/8" diameter holes through the bottom. There is no hole through the side like in Spacer #8.

Dimensions: 4-7/16" total height, 1-1/4" wide.

Marking: From a 1991 catalog, it appears the insulator has PLP logo marking and P/N 5060150 incuse into the inside.

Maker: Preformed Line Products, Cleveland, OH

Color: Grey (Sky), Black

Notes: The grey version of this is Preformed Line Products catalog No. 5060150. The black version of this is catalog No. 5060150-B. "High dielectric strength suitable for up to 750 volts." It weighs 7 oz.

Spreader #10

4.5 inches wide x 5.25 inches tall x 2 inches thick.

There is a hole that goes through the side of one arm.

One of these showed up for sale on eBay on May 13, 2007 from a seller in Drumheller, Alberta, Canada who found it in a warehouse for the local power company.

Spreader #11
Porcelain "Spreader Block for Triplex. "

Dimensions: 5.25" tall x 2.25" deep.

Marking: From a Slater (1957) catalog page, the piece might be marked as follows:

SLATER
1750

Maker: N. Slater Company, Limited, Hamilton, Ontario, Canada.

Notes: Catalogue No. 1750. The shipping weight for 100 pieces is 90 pounds. Manufactured about 1957. Usually two of these are used at once.