cheese

No, Cairo.

Blue devils are around 7/8" and have a cobalt blue base with white and purple. Can be somewhat of a swirl or a patch. The swirl type seems to be more common. There may be some rarer examples in smaller sizes and sometimes the white doesn't show much.

Two Alleys. Lots of fractures in the first unfortunately.

St. Marys to me.

Champ. These were some of the last marbles run there, found in 55 gallon drums at the auction of the factory contents.

Leaning Alley.

The vacors will have two yellow patches and some faded looking edges of the patches where the glass thinned out over the base.

I agree with Pelt. As far as I know there were no Canadian glass marble companies.

The only remaining intact WVS tank outlet known. Heaton Agate, with streaks of oxblood in transparent green and a white ribbon and the piece of white vitrolite still melted in place on the ledge over the orifice for the striking glass.

RW

Champion.

Ravenswood

St Marys Alley. White ribbons in another base color? Sure, millions of them.

Alley Inky

The term tankwash was when the tank had one type of glass in it (say for industrial marbles), and you are about to run and investor run of a different type of glass with a different coefficient. So you flush (wash) the old out and run compatible glass so that when you start adding the base and striking colors, you aren't contaminating the marbles with the incompatible industrial glass. Mostly it was a term invented by workers at JABO and I'll just say it was an abused term. That's how it was explained to me by more than one involved at JABO anyway. I agree it's Champion.