Book: Hutchins, Catherine E., et al. 1983 Arts of the Pennsylvania Germans.
• Published: fig. 136Catalogue: Hollander, Stacy C., et al. 2001 American Radiance: The Ralph Esmerian Gift to the American Folk Art Museum.
• Somewhat similar approach to sgraffito (drooping) tulips on jar: p. 132, no. 92, possibly Conrad Mumbauer or John Monday, c. 1810-40Book: Garvan, Beatrice B. 1982 The Pennsylvania German Collection.
• Similar jar, possibly influential in maker attribution: p 186. Cats. 74 & 75Catalogue: Pook & Pook Inc., Downingtown PA (sales cat.).
• Flowering plant dish attributed to Conrad Mumbouer, c. 1815 : January 11, 2008, lot 252.Catalogue: Sotheby & Co.. auction catalogue: .
• Series of sgraffito dishes attributed to Conrad Mumbouer (or, some, John Monday): January 25, 2014 (NY), Ralph O. Esmerian sale, lots 501-504, plus some later lots.