Spotted in a local garden, this is a pretty classic corrugated iron garage that probably dates from the 1970s or even earlier. It wouldn't look out of place in the 1950s setting. Today, it's a rare anomaly.
The lines are pretty simple, you could make it out of solid pieces of Wills sheet, simply scribing the doors on the front. Colour would have been black pitch, which isn't actually pitch black. The blue doors are an exciting addition I suspect now coloured paint for metal doesn't flake off in a week.