Inside Out Library · ExploreKoll's patent lock-joint staved and turned columns. (1913)Hartmann-Sanders Company (Chicago, Ill.) · The Company · leaf 48Corinthian. (Page 32.)Columns · Architecture -- DetailsInternet Archive · Winterthur Library · Public Domain Mark 1.0. Free to use for anything.More pictures from Koll's patent lock-joint staved and turned columns.More like this