Japanese Army Folding Shovel M-43

M1943エントレンチングツール

The so called Enpi in the Self-Defense Forces because it is Enpi from the time of the Meiji
明治の頃からエンピなので自衛隊でもエンピと呼ぶそうで

http://regimentals.jugem.jp/?day=20191009  check

By the way, in 1968 made ​​of cotton vinylon's reinforced with leather.

1968 Model Compared to 1982 Type

Compared to Army Small Shovel M-98 , 
" army small Enpi"