This was a highly unusual Pyrex Cinderella Chip & Dip set made as a promo item around 1961. What makes it quite different is that the bowls are actually Blue Delphite glass as opposed to the usual white. So the insides of these Cinderella Bowls are blue but the outside has been fired on in a color that shows up as extremely pale blue, because of the underlying blue delphite. It's interesting that if you look on the bottom you can see the blue delphite also because it's not fired on there.
This is similar to the Gourmet Promotional Casserole.
Here's a picture contributed by Stephanie of the full set. In addition, the pattern on the outside is made in a gold leaf color and features festive grapevines with large leaves and clusters. This actually makes it very difficult to get good pictures of the pattern. Invariably, the gold pattern comes out darker, especially when taking a picture of the entire bowl. So just know that the pattern is actually bright gold leaf, the exterior is white to light blue, and the interior is delph blue.
The name "Golden Grapes" is not official (and we didn't name it) but seems like a good description… though it would be nice to fit the "delphite" interior aspect in there somehow.
We've seen conflicting information regarding the dates of these bowls. Some say it was 1961 while other say it was made in the 1970s. We tend to think it's 1961. Please let us know if you have definitive clarification on the date of release.
The larger Cinderella bowl is #444 and holds four quarts, and the smaller dip bowl is #441 and holds 1.5 pints - perfect for chips and dip. When sold as a set (as we believe they always were) they came as #395 (the numbers on the bottom of the bowl were still the same) and came with a brass color wire holder that attaches in clip-like fashion to the larger bowl and provides a caddy setting for the smaller bowl.
Update 6/07: We found the smaller bowl below at a thrift store - for a dollar!
Also, there's a closeup of the actual gold leaf pattern… very difficult to take pics of metallic patterns.