Stunning Early Microphoto (c. 1870s) of Blood Disks, Pepperell, MA east 19th century 1940s or so I'd guess

1940s or so I'd guess

with a split to one side of the base

with a little scraping to the slate that does not at all detract

One certainly comes across old scale weights

awkward appendages to be flopped left

Stunning Early Microphoto (c. 1870s) of Blood Disks, Pepperell, MA east 19th century 1940s or so I'd guessI bought and sold two other microphotographs of blood disks (taken under a microscope) by this same Dr. S. W. Fletcher of Pepperell, MA c. 1870s several months ago, and went back to my source to buy one more as I think they're so beautiful. I've learned that William Henry Fox Talbot (18001877) was taking photographs through a microscope as early as 1837, but it was really in the second half of the 19th century, first in Germany, that technologies