There it was, just waiting for me: a charcoal snowflake divided dish! It passed the "finger around the edge check for chips" test, and I gleefully plunked down the $3.00 required by Goodwill.

It wasn't until I was home and washing it in the kitchen sink, that I turned it over and saw:
OMG!! It doesn't say PYREX! A funny logo instead...
Of course I went right to the computer and found out that I had apparently purchased a piece of Crown Pyrex, i.e. made in England.
This piece is marked with just the crown, not the JAJ plus crown stamp, so if anyone knows about these marks, I would be interested to hear.
So now we have Pyrex of three nations: the Canadian-made lime cake dish was recently thrifted for $0.75; it was half-price week at that thrift store.
And finally, here is my January 2012 kitchen display of blues and whites (Snowflake Blue, Horizon Blue, and opal).

Happy 2012, and good hunting!