Nice heavy 5 1/2" high bottle has raised letters saying HALF PINT LIQUID and a Circled MASS. O SEAL. It has a thick 1/2"h upper rim. There's an impressed 6 or 9 with a circle around it on the bottom. Along the base are the words sealed registered and the numbers 152 and 12. Brings back memories of sitting on the milkbox. In very good condition with no chips or cracks.