H-day

On this day 50 years ago Sweden switched from driving on the left-hand side of the road to the right. The 3rd of September 1967 was named Dagen H (the H-day, with H standing for Höger (Right).
Apparently the transition went well, in parts due to a massive information campaign. You can probably spot the H-logo in the magazine cover above. Below you'll find other H-day related items.