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Offer for redistribution:
 
 
I have some negatives from a photogrammetric stockpile survey that was done
for various gas and steam plants of the Philadelphia Electric Company in the
early 1950s. There are 11 sheets of 24" x 36" negative stock. The stockpiles
(coal?) are mapped with contours and with volume calculations. The
stockpiles are named and dated.
 
I'm sure that this could be useful to someone out there -- please let me
know if your library can use this in its collections.
 
Susan Greaves
Cornell University