General View of Blue Hole, Castalia, OH [Postcard]
POSTCARD TITLE: General View of Blue Hole, Castalia, Ohio
POSTMARK: Unused
PUBLISHER: R. J. Woolson, Mgr., "Blue Hole"
TYPE/BACK: White Border, Divided Back
COMMENTS: Discovered by Robert Rogers, 1760. The most interesting sight in the Fire Lands today. Depth unknown. Visible depth, 45 ft. Source underground river. Tempurature 48 degrees winter and summer.
The corners of the card are slightly rounded. Nice coloring. Check the photo for more details.