Postmarked September 10, 1912
The Hoosac Tunnel was conceived as a way to connect Boston with New York through Hoosac Mountain. It was commenced in 1851 and immediately ran into construction problems. Tunnel digging equipment failed and progress with drilling and blasting was slow due to unstable rock. Companies assigned to the project kept failing and being replaced. Interest waxed and waned and work was almost halted during the Civil War. In October 1867 leaked naptha fumes contacted a candle and exploded sending the hoist house down the 583 foot deep shaft killing 13. In all 192 men died in the construction of the tunnel which was completed in 1875. It is 24 feet wide and 20 feet high total length 4 3/4 miles long and was the longest tunnel in the US at the time. 1,900,000 tons of rock were excavated and 900 men employed during construction.