Excerpt from Detroit and the Pleasure Resorts of Northern Michigan: Compliments of Passenger Department of the Detroit, Lansing and Northern Railroad The Door Frames and J ambs of these Safes are made of malleable rolled steel, of great tensile strength, crimped and rolled into six offsets or anges, for which the company holds exclusive patent. All other Safes made in the United States have-cast Iron Door Frames and Jambs, which metal must be made thick in order to obtain sufficient strength, thus furnishing a direct avenue for the introduction of heat to the inside of the safe, while, thick as it is, it is constantly cracking, especially when exposed to fire, owing to its well known brittleness. By the use of this thin steel, we have solved the problem of how to make the front of a safe as invulnerable to fire as its other walls. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works."