Dominica, 1991, $ 6. 13 (1/4). multicoloured

Catalogues:
Michel: 1372, block 176
Scott: SS 1295
Stanley Gibbons: MS1405b
Yvert et Tellier: block 175

Sherlock Holmes & Dr. Watson watching Brunigline train
(built 1888) descending from the Brunig Pass towards Meiringen.

Plots: Doyle Arthur Conan,  «The Final Problem»