Citation
"General plan of the whole Grand Gallery of Palmyra.--The length of this gallery, from the Arch of Triumph which is seen on the left, to the Temple of Neptune where it ends, is 3500 feet. (Dalencour)(After Louis-François Cassas) , M23730.1.53.b,” Harvard Art Museums collections online, Nov 22, 2024, https://hvrd.art/o/212819.