Vintage retailer Pyrex Black Gooseberry Cinderella Bowls

Product Name: Vintage retailer Pyrex Black Gooseberry Cinderella Bowls
This is a complete set of the 4 bowls, # 441 in white, # 442 in yellow, # 443 in white, and retailer #444 in yellow. All bowls have no chips or cracks. The two white bowls are in excellent condition. One has a very small imperfection in the paint. Very clean. The small yellow, #442 shows the most marks. Some people know how to remove the black marks, I'll let you do that. Larger yellow bowl has some black marks but not as many. Please see all pictures. Feel free to make me an offer.