Upper Missouri Historical Expedition Invitation

I’ve previously shown an invitation to participate in Great Northern’s 1925 Upper Missouri Historical Expedition, but that came from another web site. Since then, I’ve acquired this one. It’s in pretty good shape, but the foil seal has been discolored from acids in the leather strip used to hold Indian beads in the lower right corner.

Click image to download a 3.1-MB PDF of this poster-sized invitation.

At 13 inches by 20 inches, these invitations are huge. They weren’t folded, so Great Northern must have found some gigantic envelopes to mail them to potential travelers.


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