It's Our War. Vintage WWII poster “Issued by the Director of Public Information, Ottawa, Under Authority of the Minister of National War Services” to help mobilize the domestic workforce for industrial war production. Illustrated by Eric Aldwinckle.
How a lock works - I refuse to confess to the amount of time I've spent just watching this gif. How does picking at a lock work? It doesn't make sense, watch the gif and then ask how it works? Comment bellow for any ideas?