A man holding a telescope is looking at two structures on an elevated platform; dotted lines indicate his line of perception.
Copyright:
The National Library of Medicine believes this item to be in the public domain. (More information)
Related Title(s):
Is part of: Oculus artificialis teledioptricus; sive, Telescopium, ex abditis rerum naturalium & artificialium.., part 2, p. 253.; See related catalog record: 2429033R