Item 74829 - Pin-type telephone line insulator, 1888 Item 74829 - Pin-type telephone line insulator, 1888 Contributed by Maine Historical Society Item 74829 Zoom 2929px x 4200px - 9.8"w x 14.0"h @ 300dpi | Need a larger size? *Credit line must read: Collections of Maine Historical Society Image Info This "toll style" telephone-line insulator was installed as part of the Old Orchard Beach Fire Department alarm system sometime between 1890 and 1920. Show Details