4X38X8
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1650-0223-0005 Fort Whipple Military
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1650-0224-0001
Military Heliograph Maneuvers
Military -
1650-0224-0002
Camp Meade
Military -
1650-0224-0003
Fort Trombull
Military -
1650-0224-0004
Vera Cruz
Military -
1650-0224-0005
Field Visual Signal Station
Military -
1650-0224-0006
Camp Wikoff
Military -
1650-0224-0007
Camp Merritt
Military -
1650-0224-0008
Camp Meade
Military -
1650-0224-0009 Heliograph Military
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1650-0224-0010
Signal Tower
Military -
1650-0224-0011
Pikes Peak
Military