Item 5796 - 108 mm. shell manufacturing, ca. 1917 Item 5796 - 108 mm. shell manufacturing, ca. 1917 Contributed by Maine Historical Society Item 5796 Zoom 4209px x 3168px - 14.0"w x 10.6"h @ 300dpi | Need a larger size? *Credit line must read: Collections of Maine Historical Society Image Info The Portland Company of Portland, Maine manufactured shell casings for the 108 mm. artillery used by the United States during World War I. Show Details