Check and Double Check (1930) - IMDb

The Cuckoos (1930) - IMDb

All Quiet on the Western Front (1930) - IMDb

High Alert Double Check Label, double check

Double check - Free interface icons, double checked

2 in. Double Check Valve Backflow Preventer, double check

The Office Wife (1930) - IMDb

Feet First (1930) - IMDb

Outside the Law (1930) - IMDb

Math Clips

2 in. Double Check Valve Backflow Preventer, double check

High Alert Double Check Label, double check

Check and Double Check (1930) - IMDb

People on Sunday (1930) - IMDb

Green double checking icon, double tick, check mark. Flat done

Label reads: Double Check, Labels are Yellow with Black text