Orange and brown nesting/mixing Pirex bowls #441,442,443

Beautiful orange and brown set of three mixing/nesting bowls with dual handles microwave and oven safe. This were made around 1970s The biggest bowl is in very good shape the other two have a couple of scratches as shown on the picture held by the light and slight discoloration by the handle on brown bowl. please let me know if you have any questions or you need more pictures