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| Keywords: 12-Inch-Mortar-M1908.jpg This U S Army photo shows a 12-inch mortar Model 1908 in Pit A of Battery Whitman Fort Andrews Boston MA This mortar and its carriage were 1 ton lighter and were more compact than the M1890 and had about the same range as the older weapon However only four of these were emplaced in the U S the remaining 20 being deployed overseas in the territories Also shown here at left rear is the data booth for the mortar pit Azimuth and elevation data received from the plotting room were chalked onto pieces of blackboard or slate that were mounted on the billboard visible at the extreme left edge of the booth These data were used by the mortar crews to aim their weapons The boxes mounted on the wall outside the door of the booth are likely the safety switches for the mortars in this pit enabling them to fire electrically or not and the firing magneto for the pit which was cranked to provide firing current for up to four mortars original text 1 Original image likely taken by the U S Army Signal Corps or Coast Artillery Corps is unsourced but was reprinted in Butler Gerald The Military History of Boston's Harbor Islands Arcadia Publishing Charleston SC 2000 p 57 from whence is was scanned by the contributor Original uploader was Pgrig at http //en wikipedia org en wikipedia 2010 08 30 original upload date date Likely c 1935 author PD-USGov Original upload log en wikipedia Rcbutcher CommonsHelper page en wikipedia 12-Inch-Mortar-M1908 jpg 2010-08-30 17 24 Pgrig 605×450× 368136 bytes <nowiki>This U S Army photo shows a 12-inch mortar Model 1908 in Pit A of Battery Whitman Fort Andrews Boston MA This mortar and its carriage were 1 ton lighter and were more compact than the M1890 and had about the same range as the older weapon However </nowiki> Artillery of the United States 305 mm artillery Boston Harbor in the 20th century Peddocks Island | ||||
