Humboldt Engineering Works Co: Difference between revisions
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[[Image:Im189806Cass-Humboldt.jpg|thumb| June 1898. ]] | [[Image:Im189806Cass-Humboldt.jpg|thumb| June 1898. ]] | ||
[[image:Im189908Cass-Hum.jpg |thumb| August 1899.]] | |||
of Kalk, Cologne. | of Kalk, Cologne. |