Nova Scotia Archives
Men in the Mines
A History of Mining Activity in Nova Scotia, 1720-1992
"Wentworth Gypsum Co. — Cable Towers and Hoisting Plant at Quarries"
Published by B.T.A. Bell in the Canadian Mining, Iron and Steel Manual (1896), p. 254.
Date: 1896
Reference: Nova Scotia Archives Library: TN B41 1896