Wooden chairs on the gallows

[Rsmyth]

Somewhere I thought I read that the wooden chairs that were placed on the gallows for the condemmed were the same ones that General Hartranfts staff used when posing for a picture. Can anyone tell me if this is correct. Look at the chair Davey is sitting in on the right. It looks like the same style chair. It appears the pic of the staff was taken in the corner to the left of the gallows.

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