Wet Paint: a layered history is the work of Mari Kroin; uncovering history through exploring the layers paint on NYC Subway columns.
There is an amazing website – Old Book Illustrations – which has a nicely searchable database of (surprise) old book illustrations, like the above image: Calles de Coca and Bodegones, Lima.
Original traffic cone patent by Charles D. Scanlon, US Patent US2333273A.
1969: Call Box and Street Lamps, 28th & O Streets N.W., Washington D. C. Photo by Jack E. Boucher from the Library of Congress Historic American Buildings Survey/Historic American Engineering Record/Historic American Landscapes Survey. The Historic American Buildings Survey is part of Heritage Documentation Programs (HDP) is a division of the U.S. National Park Service…