A survey of Manhattan Island, this is one of the first civilian aerial maps of a large city. Made by taking photos from a biplane, it was created on Aug 4, 1921, and assembled using 100 aerial photographs taken at an altitude of 10,000 feet! Zoom in here: …
— Kenneth Samson (@PangurBanC) Aug 31, 2022
from Twitter https://twitter.com/PangurBanC
August 31, 2022 at 10:53AM
via PangurBanC
https://linktr.ee/samsonkg
