1998 Breast Cancer Single 32c Postage Stamp - Sc# B1 - MNH, OG - CX6a
1998 Cure Breast Cancer Plate Block Of 4 32c+8c Postage Stamps - Sc# B1 - MNH, OG - CX6
1999 John and William Bartram, Botanists Plate Block Of 4 33c Postage Stamps - Sc 3314 - MNH - DM135
2001 Enrico Fermi - Physicist Plate Block of 4 34c Postage Stamps - MNH, OG - Sc# 3533
2001 Enrico Fermi Single 34c Postage Stamp - Sc# 3533 - MNH,OG
2004 R. Buckminster Fuller Plate Block of 4 37c Postage Stamps - MNH, OG - Sc# 3870
2004 Test Early For Sickle Cell Anemia Plate Block Of 4 37c Postage Stamps - Sc# 3877 - MNH - DR117a
2005 American Scientists Plate Block of 4 37c Postage Stamps - MNH, OG - Sc# 3906-3909
2006 Dr Jonas Salk Polio Vaccine Plate Block of 4 63c Postage Stamps - MNH, OG - Sc# 3428
2008 American Scientists Cori, Pauling, Hubble, Bardeen Strip Of 4 41c Postage Stamps - Sc# 4224-4227 - DR136
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
2015 Robert Robinson Taylor Single Forever Postage Stamp - MNH, OG - Sc# 4958
Progress in Electronics Plate Block of 4 Postage Stamps - MNH, OG - Sc# 1502
Robert Robinson Taylor Plate Block of 4 Forever Postage Stamps - MNH, OG - Sc# 4958
