This is for three (3) vintage old original SINCLAIR MOTOR OIL Miniature Tin Coin Banks from the 1950s.  Given from service gas stations and car dealerships as a promotional item.  Labels are paper over tin.  Set includes: Sinclair Opaline Motor Oil, Sinclair Aircraft Oil and Sinclair Extra Duty Triple-X Multi Grade Oil.  

Measure in inches aprox 3" tall x 1 1/2 " diameter.  All 3 in great condition.