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Apache Triangulation Station (1946) USGS - Cleaned up.
Look close - You can see the bottom part of the 1st "A" in Apache and the bottom of the "E".
All other specific disk stampings have been obliterated except '1946'
Look close - You can see the bottom part of the 1st "A" in Apache and the bottom of the "E".
All other specific disk stampings have been obliterated except '1946'