It's not every day that a piece like this surfaces.

These rounded base Canadian CD 133s are uncommon even in the most basic aqua shades. I had been fortunate enough to add the clean example at left to my lineup almost 10 years ago when a friend was selling off his collection. The filthy, underpoured example at right is the example [id=664629952;obtained only a week ago]. The soot will stay on this one.

Evidently examples in this colour were used somewhere around here, as both originated from the general London, ON area.