I love the colour of this blue bowl.  It is hard to tell, but it is close to a Robin’s egg blue.  It is not delphite, the colour is obviously (I think) painted on.  It has no markings.

I’ve not seen one with this exact shade and have no idea if it is a Pyrex bowl or not.  Afraid I don’t know anything about Pyrex/Fire-King at all and have very few reference materials.

I assume that the rim, shape of the bowl and shape of the foot would be all someone in the know would need to identify this bowl.  If anyone knows, I would be grateful to have the information.