Tulip Dell glass dinnerware in a pretty purple color.
This lot is not quite a 'real' set for two - there's two each of the 10 1/2" diameter dinner plates, two cups, but just one saucer, though there's three of the small plates very close to the size of the saucers.
Just use a small plate as a saucer, and you'll be all set. Or add these pieces to an existing collection.
There's some slight edge and mold line roughness to some areas - probably mostly original to manufacture.