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Improvements in Apparatus for Concentrating Acid (open access)

Improvements in Apparatus for Concentrating Acid

Patent for an apparatus for concentrating acid. This apparatus relates to concentrating weak acid taken from petroleum sludge.
Date: October 10, 1911
Creator: Gray, Elisha Burritt
Object Type: Patent
System: The Portal to Texas History

[Postcard of Y. M. C. A. Building in Beaumont, Texas]

Postcard of a four story brick building with white accents, described as "Y. M. C. A. Building, Beaumont, Texas." A picture of a watch is pasted on the back of the postcard, with the message "Me find Jack H. H. 11-10-11." The postcard is addressed to "Miss Mamie McFaddin Washington D. C. 1906 Florida Ave."
Date: November 10, 1911
Creator: unknown
Object Type: Postcard
System: The Portal to Texas History