Illustrated Architecture Dictionary
1 - A foundation stone
2 - A stone prominently situated near the base of a corner in a building, carrying information recording the dedicatory ceremonies, and in some instances containing or capping a vault in which contemporary memorabilia are preserved
Usually found on the right side of a building.
Examples from Buffalo architecture:
- Illustration above: Holy Angels Academy / D'Youville College Montante Family Library
- Annunciation RC Church
- Richardson-Olmsted Complex