vintage clear glass 2.25" tall Salt & Pepper Shaker jars set - missing lids

salt & pepper shaker set
color: clear, colorless
condition: excellent - missing lids

two small glass jars
height: 2.25"
criss-cross design
opening diameter is 0.75"
needs screw-on lid with diameter of 1-1/8"
marked "M331" on bottom

jars in excellent condition
no nicks, chips or cracks