1976 Clara Maass - Malaria - Block Of 4 13c Postage Stamps - Sc# 1699 - MNH, OG - CT43a
1984 Lillian Gilbreth Psychology Pioneer Block of 4 40c Postage Stamps - MNH, OG - Sc# 1868
1995 Alice Hamilton Plate Block of 4 55c Postage Stamps - MNH, OG - Sc# 2940
1995 Alice Hamilton Block of 4 55c Postage Stamps - MNH, OG - Sc# 2940
1984 Lillian Gilbreth Psychology Pioneer Single 40c Postage Stamp - MNH, OG - Sc# 1868
1940 Jane Addams Single 10c Postage Stamp - Sc# 878 - MNH,OG
1976 Clara Maass Block Of 6 13c Postage Stamps - Sc# 1699 - MNH, OG - CT43b
