This accession includes handwritten diaries, correspondence, a small number of 'Heat Engineering' magazines and machinery catalogs, typescript reports on manufacturing technologies, over 300 4 x 6" photographs of factory sites in South America, blueprints/mechanical drawings of factory improvements, and a Grace and Co. centennial commemorative paperweight.

This accession includes handwritten diaries, correspondence, a small number of 'Heat Engineering' magazines and machinery catalogs, typescript reports on manufacturing technologies, over 300 4 x 6" photographs of factory sites in South America, blueprints/mechanical drawings of factory improvements, and a Grace and Co. centennial commemorative paperweight.

This accession includes handwritten diaries, correspondence, a small number of 'Heat Engineering' magazines and machinery catalogs, typescript reports on manufacturing technologies, over 300 4 x 6" photographs of factory sites in South America, blueprints/mechanical drawings of factory improvements, and a Grace and Co. centennial commemorative paperweight.

This accession includes handwritten diaries, correspondence, a small number of 'Heat Engineering' magazines and machinery catalogs, typescript reports on manufacturing technologies, over 300 4 x 6" photographs of factory sites in South America, blueprints/mechanical drawings of factory improvements, and a Grace and Co. centennial commemorative paperweight.

This accession includes handwritten diaries, correspondence, a small number of 'Heat Engineering' magazines and machinery catalogs, typescript reports on manufacturing technologies, over 300 4 x 6" photographs of factory sites in South America, blueprints/mechanical drawings of factory improvements, and a Grace and Co. centennial commemorative paperweight.

This accession includes handwritten diaries, correspondence, a small number of 'Heat Engineering' magazines and machinery catalogs, typescript reports on manufacturing technologies, over 300 4 x 6" photographs of factory sites in South America, blueprints/mechanical drawings of factory improvements, and a Grace and Co. centennial commemorative paperweight.

This accession includes handwritten diaries, correspondence, a small number of 'Heat Engineering' magazines and machinery catalogs, typescript reports on manufacturing technologies, over 300 4 x 6" photographs of factory sites in South America, blueprints/mechanical drawings of factory improvements, and a Grace and Co. centennial commemorative paperweight.

This accession includes handwritten diaries, correspondence, a small number of 'Heat Engineering' magazines and machinery catalogs, typescript reports on manufacturing technologies, over 300 4 x 6" photographs of factory sites in South America, blueprints/mechanical drawings of factory improvements, and a Grace and Co. centennial commemorative paperweight.

This accession includes handwritten diaries, correspondence, a small number of 'Heat Engineering' magazines and machinery catalogs, typescript reports on manufacturing technologies, over 300 4 x 6" photographs of factory sites in South America, blueprints/mechanical drawings of factory improvements, and a Grace and Co. centennial commemorative paperweight.

This accession includes handwritten diaries, correspondence, a small number of 'Heat Engineering' magazines and machinery catalogs, typescript reports on manufacturing technologies, over 300 4 x 6" photographs of factory sites in South America, blueprints/mechanical drawings of factory improvements, and a Grace and Co. centennial commemorative paperweight.