Vintage Pyrex 501-B Small Fridgie Dish in Red, lid flawed

Vintage Pyrex 501-B Small Fridgie Dish in Red, lid flawed  This is a vintage Pyrex 501-B small refrigerator dish in red, typically featuring a 1.5-cup capacity and a clear glass lid.  The Pyrex 501 small refrigerator dish (affectionately called a fridgie by collectors) holds an iconic spot in American mid-century kitchen history.  These dishes were produced between 1946 and 1960 as part of the primary color sets.    High-durability borosilicate milk glass coated in a glossy exterior fired-on paint.  The Lid (#501-C): Made of heavy, clear ridge-line glass. Because these ridge lids chipped easily or got separated over the decades, finding a dish with its original intact lid significantly raises its value.  The base dish can safely withstand oven temperatures up to 425°F.  This lid is flawed.  There is a big chip in it as shown.  One side is gnawed a bit as shown.  The lid is imperfect.  The red paint is not totally perfect, as shown in pictures.  Dimensions: 4x 3x 2.5