Grandmother's pitcher & glass set at least 80 years old.

I have searched for information on this set since 1967 and have not found a hint anywhere. The pitcher is pink (Depression) glass etched with grapevine & grape design and has an applied green glass handle. The 6 glasses are also pink with same etched design and very fragile (thin). I think these were presented to her by a drummer as enticement to sell whatever ware he was promoting for her grocery store in the 1930s.