Original U.S. WWII M17 Elbow Telescope Sight for the 155mm M1917 Howitzer Japanese Replica though still partly legible:

though still partly legible:

Much of the paint has been removed from the brass so these markings are very evident

It was most likely manufactured in British controlled India / Nepal

a forerunner of the modern Katana derived from the Tachi longsword

Original U.S. WWII M17 Elbow Telescope Sight for the 155mm M1917 Howitzer Japanese Replica though still partly legible:Original Item: Only One Available. This is a very nice 1943 dated U. S. M17 Elbow Telescope, used with the standard M1917 155mm Howitzer, the French designed Canon de 155 C modle 1917 Schneider. The telescope was used to aim the canon properly in various conditions. The metal data plate on the sight reads: TELESCOPE, ELBOW M17 NO. ????? ????? MINNEAPOLIS HONEYWELL REG. CO. 1943 The data plate is oxidized, so unfortunately the serial number and other