Sir Arthur Conan Doyles studied medicine in Edinburgh and became an ophthalmologist 
in London. However, his career did not flourish and the money was poor. In his spare 
time, he wrote mystery stories and hit the big time with the creation of Sherlock Holmes 
which gained him fame and fortune.

San Marino (1979): Sherlock Holmes
Turks & Caicos (1984): 125th Birth Anniversary of Sir Arthur Conan Doyles featuring 
The Adventures of Sherlock Holmes: 
The Adventure of the Second Stain
The Adventure of the Final Problem
The Adventure of the Empty House
The Adventure of the Greek Interpreter