2015 Robert Robinson Taylor Single Forever Postage Stamp - MNH, OG - Sc# 4958
1973, Electronics Progress, Plate Block of 4 11c Airmail Postage Stamps - Sc# C86 - MNH,OG
1940 Dr. Crawford W. Long - Scientists - Plate Block of 4 2c Postage Stamps - Sc# 875 - MNH,OG
2008 Semipostal Alzheimers Plate Block of 4 "Forever" Stamps - Sc# B6 - MNH, OG -DC141
2011 American Scientists Strip of 4 Forever Postage Stamps - MNH, OG - Sc# 4541-4544
2005 American Scientists Plate Block of 4 37c Postage Stamps - MNH, OG - Sc# 3906-3909
2004 R. Buckminster Fuller Plate Block of 4 37c Postage Stamps - MNH, OG - Sc# 3870
2001 Enrico Fermi Single 34c Postage Stamp - Sc# 3533 - MNH,OG
2006 Dr Jonas Salk Polio Vaccine Plate Block of 4 63c Postage Stamps - MNH, OG - Sc# 3428
1996 Computer Technology Single 32c Postage Stamp - Sc# 3106 - MNH,OG
1996 Computer Technology Block Of 8 32c Postage Stamps - Sc# 3106 - MNH, OG - CW328
1996 Breast Cancer Awareness Single 32c Postage Stamp - Sc# 3081 - MNH,OG
1996 Smithsonian Single 32c Postage Stamp - Sc# 3059 - MNH,OG
1996 Ernest E. Just Black Heritage Single 32c Postage Stamp - Sc# 3058 - MNH, OG - CW361a
1992 Theodore Von Karman Single 29c Postage Stamp - MNH, OG - Sc# 2699
1983 Science And Industry Single 20c Postage Stamp - Sc# 2031 - MNH,OG
1984 Lillian Gilbreth Psychology Pioneer Block of 4 40c Postage Stamps - MNH, OG - Sc# 1868
1978 Photography Single 15c Postage Stamp - Sc# 1758 - MNH, OG - CT79a
1978 PAP Test Early Cancer Detection Single 13c Postage Stamp - Sc# 1754 - MNH,OG
1976 Chemistry Single 13c Postage Stamp - MNH, OG - Sc# 1685
1976 Alexander Graham Bell Sigle 13c Postage Stamp - Sc# 1683 - MNH,OG
1975 Space Apollo-Soyuz (Russia) Pair - Scott# -1569-1570 - MNH, OG - CX665
1974 Space Skylab Single 10c Postage Stamp - Sc# 1529 - MNH - CW486a
Progress in Electronics Plate Block of 4 Postage Stamps - MNH, OG - Sc# 1502
