This collection contains primarily original drawings, stencils, and color studies for decorative design work--primarily mosaic tile designs--done by Frederick Krieg for R. C. Fisher & Co., other unidentified companies, and likely for himself, in New York City. Although only a very few of the drawings can be attributed to specific buildings, a small group of designs were created by Krieg for the ceiling of the main floor of Surrogate's Court / Hall of Records in Manhattan. Additionally, a small number of window shade design templates, project photographs, and design reference files complement Krieg's drawings. Also included in the collection are three photograph albums and ephemeral materials documenting projects and social events associated with Krieg's son, Charles R. Krieg, a structural engineer working for the Foundation Company. Lastly, the collection contains a small group of papers regarding stone maintenance from Krieg's youngest son, architect Theodore Krieg.