Hello, Tonight a lovely Australian FDC. Issued in 1995 to commemorate some Australians who contributed to medical science. One stamp shows three radiology pioneers, Sir Thomas Lyle, Father Joseph Slattery, Walter Filmer, another shows Sir Macfarlane Burnett and Dame Jean Macnamara.
The two stamps showing individuals show Sir Howard Flory (one of the discovers of penicillin) and Fred Hollows, a famous eye surgeon.
I had not seen all of these before I came across this cover. Hope you enjoyed seeing it as much as I did.
Best wishes.. Michael