Unused on cover / entire letter 1912 (20 Oct.) envelope registered to Austria, bearing 1902 2c., 4c. and 50c. in combination with Straits Settlements 1906-07 4c. on 12c. and 4c. on 16c. block of four, all cancelled by Labuan double-ring d.s. Attractive

Details
Unused on cover / entire letter 1912 (20 Oct.) envelope registered to Austria, bearing 1902 2c., 4c. and 50c. in combination with Straits Settlements 1906-07 4c. on 12c. and 4c. on 16c. block of four, all cancelled by Labuan double-ring d.s. Attractive