| Image | Description | Purchase |
| | ANDORRA-FRENCH - Scott 302 Dr. Koch MINT NH ANDF302H8-XS | Price: $0.79 | | |
| | AUSTRALIA - Scott 1165 Medicine MINT VF NH ASTL1165H8 | Price: $0.70 | | |
 | BAHAMAS - Scott 505-08 Dr. Koch MINT VF NH BAHA505-08H8-XS | Price: $3.95 | | |
| BAHAMAS - Scott 508A Dr. Koch S/S MINT VF NH BAHA508AH8-XS | Price: $3.95 | | |
| | BAHAMAS - Scott 1076-79 Bush Medicine Pt. 3 MINT NH BAHA1076-79H8 | Price: $3.95 | | |
| | BANGLADESH - Scott 214-15 Dr. Koch MINT NH BNGL214-15H8 | Price: $3.95 | | |
| BELGIUM - Scott B567-72 1954 Anti-TB MINT F/VF NH BELGB567-72H8 | Price: $21.00 | | |
| | BELGIUM - Scott B567-72 1954 Anti-TB MINT LH BELGB567-72H8 | Price: $8.95 | | |
| BELGIUM - Scott B573-78 Doctors & Scientists MINT NH BELGB573-78H8 | Price: $26.00 | | |
| | BOLIVIA - Scott 600 Medicine MINT NH BOLV600H8 | Price: $1.00 | | |
| BOSNIA (SERBIA ADMIN) - Scott NEW ISSUE Tuberculosis 2010 Perf & Imperf Red Cross (2 Values) MINT NH BOHSR370 | Price: $0.78 | | |
| | BRAZIL - Scott 733 Medicine MINT NH BRZL733H8 | Price: $1.50 | | |
| | BRUNEI - Scott 276-77 Dr. Koch MINT NH BRUN276-77H8 | Price: $3.94 | | |
| | CENTRAL AFRICAN REPUBLIC - Scott 13 Pasteur (Medicine) MINT NH CENT13H8 | Price: $1.00 | | |
| | CENTRAL AFRICAN REPUBLIC - Scott 92 Nurse, Medicine, Vaccination MINT NH CENT92H8 | Price: $1.00 | | |
| CHAD - Scott C25 Albert Schweitzer MINT NH CHADC25H8 | Price: $2.00 | | |
| | CHINA-TAIWAN - Scott 2315-17 Dentist MINT VF NH CHNN2315-17H8 | Price: $1.60 | | |
| | CONGO, PEOPLES REP. (FR.) - Scott 357-59 Fleming, Medicine, etc. MINT NH CNGP357-59H8 | Price: $3.50 | | |
| | COSTA RICA - Scott C330-33 Physicians MINT NH COSTC330-33H8 | Price: $1.00 | | |
| | COSTA RICA - Scott C893-95 Dr. Koch MINT NH COSTC893-95H8 | Price: $0.50 | | |
| DAHOMEY - Scott 250-51 1968 Medicine Deluxe S/S MINT NH DAHO250-51H8 | Price: $21.00 | | |
| | DENMARK - Scott B71 Epileptics Medicine MINT NH DENMB71H8 | Price: $1.50 | | |
| | DJIBOUTI - Scott 544 Dr. Koch MINT VF NH DJIB544H8-XS | Price: $3.00 | | |
| | FINLAND - Scott B194-96 Blood, Nurse, Medicine MINT NH FINLB194-96H8 | Price: $1.40 | | |
| | FRANCE - Scott 2113 Medicine MINT NH FRAN2113H8 | Price: $1.20 | | |
| FRANCE - Scott B101-02 1940 Medical, Red Cross, WWII, Doctor MINT NH FRANB101-02H8 | Price: $12.00 | | |
| | FRANCE - Scott B101-02 1940 Medical, Red Cross, WWII, Doctor MINT LH FRANB101-02H8 | Price: $7.00 | | |
| FRENCH POLYNESIA - Scott C191 Dr. Koch Deluxe S/S. Only 250 Exist. MINT NH FRPYC191H8 | Price: $27.50 | | |
| FRENCH POLYNESIA - Scott C191 Dr. Koch Imperf MINT NH FRPYC191H8 | Price: $12.50 | | |
| GABON - Scott C11 Dr. Schweitzer MINT NH GABNC11H8 | Price: $3.00 | | |
| GABON - Scott C39 Dr. Schweitzer Gold MINT NH GABNC39H8-HI-EBAY | Price: $49.00 | | |
| | GABON - Scott C226 Insect, Medicine MINT NH GABNC226H8 | Price: $2.70 | | |
| GERMANY - Scott B350-53 Medicine MINT NH GERWB350-53H8 | Price: $8.00 | | |
| GERMANY - Scott B350-53 Medicine MINT LH GERWB350-53H8 | Price: $4.00 | | |
| | GERMANY EAST - Scott 2248 Dr. Koch S/S MINT VF NH GERE2248H8-EBAYOFF | Price: $1.85 | | |
| GRENADA - Scott 507-14 Medicine, Doctors MINT NH GRND507-14H8 | Price: $3.00 | | |
| | GUINEA - Scott 449-52 Medicine, Physicians MINT NH GUIN449-52H8 | Price: $1.50 | | |
| | GUINEA - Scott 449-52 Medicine, Physicians Imperf MINT NH GUIN449-52H8 | Price: $28.00 | | |
| | GUINEA - Scott 646-52 1973 Medicine, Biology Set of 7 MINT NH GUIN646-52H8 | Price: $4.00 | | |
| GUINEA - Scott B12-16 Medicine, Surgery MINT NH GUINB12-16H8 | Price: $7.50 | | |
| GUINEA BISSAU - Scott HS12 2005 - Fauna of Africa - Wild Cats Sheetlet of 6 Different (Albert Schweitzer) (1) MINT NH GUNBHS12H8 | Price: $8.25 | | |
| GUINEA BISSAU - Scott HS13 2005 - Fauna of Africa - Lion S/S (Albert Schweitzer) MINT NH GUNBHS13H8 | Price: $8.30 | | |
| GUINEA BISSAU - Scott HS117 2006 - African Animals and Dr. Schweitzer Sheetlet of 6 Different MINT NH GUNBHS117H8 | Price: $8.55 | | |
| GUINEA BISSAU - Scott HS118 2006 - Dr. Schweitzer and Animals S/S MINT NH GUNBHS118H8 | Price: $8.80 | | |
| GUINEA BISSAU - Scott HS130 2006 - Nobel Prize for Medicine S/S (Axel) MINT NH GUNBHS130H8 | Price: $6.61 | | |
| GUINEA BISSAU - Scott HS140 2006 - Dr. Schweitzer in Africa Animals S/S of 6 Different MINT NH GUNBHS140H8 | Price: $8.61 | | |
| GUINEA BISSAU - Scott HS141 2006 - Dr. Schweitzer Animals S/S MINT NH GUNBHS141H8 | Price: $7.70 | | |
| GUINEA BISSAU - Scott HS142 2006 - Dr. Schweitzer and Fauna Animals of Africa S/S MINT NH GUNBHS142H8 | Price: $8.95 | | |
| | INDIA - Scott 957 Dr. Koch Tuberculosis MINT NH INDI957H8 | Price: $1.70 | | |
| | INDONESIA - Scott 1328 Physicians MINT VF NH INDO1328H8 | Price: $1.00 | | |
