looks at a multi-period building.
From Long Face Games
Watermarked PDF – $3.81 USD
A set of STL files representing the Swedish coastal defense monitors of the "Hildur" class, seven vessels completed between 1872 and 1875. Six ships were completed with the main gun firing forward; the seventh, Folke, had her gun pointing aft.
The STL files are scaled for printing in 1:600 and print well at 1:1200.