They may not be as pretty as a patterned bowl but I love them anyway. Marked PYREX RACINE WISCONSIN and originally came with a Hamilton Beach mixer. : r/Pyrex_Love
Pyrex | Kitchen | Vintage Milk Glass Pyrex Hamilton Beach Small Mixing Bowl With Spout | Poshmark
Vintage Hamilton Beach milk glass mixing bowl and a green Pyrex 10" bowl. Two bowls - Bunting Online Auctions
Vintage Hamilton Beach 6 1/2" White Milk Glass Mixing Bowl W/Spout | eBay
VINTAGE PYREX HAMILTON BEACH WHITE MILK GLASS RIBBED MIXING BOWL WITH SPOUT | eBay
Vintage Hamilton Beach Model G Counter Top Mix Master Elec - Etsy Canada