HARTMAN, Sidney K. (1863-1929) German-American artist.
N U M I S M A T I C R E F E R E N C E S
E17 {1983} Pessolano-Filos, p 52 (author confused this artist with Herman Hartmann, q.v.).
N U M I S M A T I C R E F E R E N C E S
E17 {1983} Pessolano-Filos, p 52 (author confused this artist with Herman Hartmann, q.v.).