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- Envelope with canceled stamp, addressed to 'Mr. M. Van Veen', postmarked Brooklyn, N.Y., December 6, 1917.
- Envelope includes return address: 'S. Cillis' / 3067.A. Bat. B. /Camp Upton / L.I, 'National War Work Council Army and Navy Young Men's Christian Association 'with the Colors''. Also includes image of American flag.
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- Envelope with canceled stamp, addressed to 'Mr. M. Van Veen', postmarked Brooklyn, N.Y., December 6, 1917.
- Envelope includes return address: 'S. Cillis' / 3067.A. Bat. B. /Camp Upton / L.I, 'National War Work Council Army and Navy Young Men's Christian Association 'with the Colors''. Also includes image of American flag.