Primary or Secondary Sources?

Stagecoaches

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Concord-style Stagecoach Model
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Concord-style Stagecoach Model
 
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Mud Wagon-style Stagecoach Model
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Concord-style Mail Stagecoach
 

Stagecoaches were used to transport passengers, supplies, and mail from the east to the west and back during the 19th century. These four stagecoaches are examples of primary and secondary sources. Look at the images and read the detailed descriptions to decide which one is a primary source and which three are secondary sources.