55-J-610-20 Made in USA By Cohen - Fein Company. M-1951 Field Jacket carried different labels as it progressed through its life history. Early versions were "Jacket, Shell, Field, M-1951" (as above) with dates in the early 1950s and specification MIL-J-11448.
Excellent Condition with No Issues Noted. It should fit a larger Medium or a Large size 6' tall man. Stated size Medium Long Chest 37-41 Height 71 and up.