Vintage Tupperware 312 Shear Square Lidded Storage Container.

Vintage Tupperware Square Container Matte Clear 312-11 with Beige Lid 310-56

Vintage Tupperware Storage Container #312 Clear No Lid

Vintage Tupperware Storage Container #312 Clear With a #310 Tan Lid

Vintage Tupperware 311 square storage container & pastel blue seal/lid

Vintage Ice Blue Tupperware Storage Container 312 w/310 Sheer Lid

Vintage Tupperware Sheer Storage Container 312 with Cream Lid 310

Vintage Tupperware Square Clear Storage Container W/ Beige Lid 312