I have no idea why I picked these up (I had two, my son now has one of them).  Probably because they were cute and only $0.25 cents.  I don’t even eat poached eggs!

It is marked “FRANCE” on the bottom.  This is a common piece.  Lots online.  Saw some identified as “Luminarc”.  That’s as good a guess as anything else!  I think this little guy will head back to the thrift shop.