January 15, 2018 The Famous Blue Hole, Castalia, Ohio (Date Unknown) Geo. H. Tremper | Curt Teich | Linen | c. 1930-1940s
January 15, 2018 Walk Along Trout Stream at Blue Hole, Castalia, Ohio (Date Unknown) Geo. H. Tremper | Curt Teich | Mound Photo | Linen | c. 1930-1940s
