This tag is designed for use where there may be a need to assert that any enhancements (eg brightness, contrast, colour-matching, sharpening) are in themselves insufficiently creative to generate a new copyright. It can be used where it is unknown whether any enhancements have been made, as well as when the enhancements are clear but insufficient. For known raw unenhanced scans you can use an appropriate {{PD-old}} tag instead. For usage, see Commons:When to use the PD-scan tag.
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{{Information |Description ={{en|1=1911 map of the Key System commuter trains and streetcars}} |Source =[http://www.7x7.com/east-bay/secret-san-francisco-key-system Secret San Francisco: The Key System] |Author =Key System |Date...
