I came across a wonderful post on The Pyrex Collective, by Linda of A La Carte, telling me just what I needed to know! She said this dish is "a promotional item from Christmas 1959. It is a snack server with a handle. Again no official pattern name, but it is refereed to as Compass."
Linda also included some fabulous photos, much better than my hokey photo, of her black and white Pyrex dishes.
Her other dish is "a Fall Promotional Gift item in 1958. It doesn't have an official name but is called Barbed Wire." Ooohhhh. I'd love to find that one! Don't these look great for Halloween!
Black and White Pyrex is very pretty and quite showy in a group. I came across this wonderful photo collage by meetmeatmikes on Flickr.
It makes you want to start a collection, doesn't it!?!?!
Ebay has a fairly decent selection of black and white Pyrex, but I prefer to find mine while treasure hunting. That sounds better than pickin'.