Robert Robinson Taylor Plate Block of 4 Forever Postage Stamps - MNH, OG - Sc# 4958
2015 Robert Robinson Taylor Single Forever Postage Stamp - MNH, OG - Sc# 4958
2005 American Scientists Plate Block of 4 37c Postage Stamps - MNH, OG - Sc# 3906-3909
1996 Breast Cancer Awareness Single 32c Postage Stamp - Sc# 3081 - MNH,OG
1964 Doctors Mayo Clinic Single 5c Postage Stamp - MNH, OG - Sc# 1251`- CX253
1940 Dr. Crawford W. Long - Scientists - Single 2c Postage Stamp - Sc# 875 - MNH,OG
1949 Wright Brothers Airmail Single 6c Postage Stamp - Sc C45 - MNH, OG - CW400b
1993 American Sign Language Plate Block Of 4 29c Postage Stamps - Sc# 2783-2784, MNH - QQ119
1992 Space Accomplishments Block Of 4 29c Postage Stamps - Sc 2631-2634 - MNH -DS120
2004 Test Early For Sickle Cell Anemia Plate Block Of 4 37c Postage Stamps - Sc# 3877 - MNH - DR117a
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
1940 Dr. Crawford W. Long - Scientists - Plate Block of 4 2c Postage Stamps - Sc# 875 - MNH,OG
1973, Electronics Progress, Plate Block of 4 11c Airmail Postage Stamps - Sc# C86 - 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
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 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
