Army Engineer Units

    There were two different kinds of engineers in the Japanese army and navy. One kind fixed
    vehicles, tanks, and other mechanical items. They built them, too. The other kind built and
    maintained roads, bridges, and other buildings.

    Although there were two types, the main symbols on all engineer cups were the same: a
    shovel and pickax. However, there is a great variety of engineer cups, many of which have no
    shovel or pickax. So the first thing to remember is the kanji for Engineer, which is easy
    because it looks just like an upper-case I.
The kanji for 'engineer' is to the right,
followed by HEI (soldier).
Sake cup tray from an engineer unit. Note
the pickax and shovel by the flag.
Some examples.
The kanji for engineer is used as part of the design.
Engineer cups with no shovel or pickax.
The characters read 'Engineer, 5th Regiment, 5th Division.'
4th Engineer Unit, Discharge Commemorative
Hand-painted Engineer soldier cup from WW1, specifically Siberia.
This is the first soldier cup I have seen from this conflict. The design
shows a Japanese soldier and a large explosion. The characters read
'
9th Engineer, Siberia, Discharge Commemorative.'
Here are two engineer cups
with regiment collar tabs, both
3rd Regiment.
Inscribed 'Meiji 43 [1910], Army, Large
Military Training Exercise Commemorative.'
On the reverse: 'Engineer Infantry, 17th
Division.'
Rare hand-painted Engineer soldier cup. Inscribed
'9th Engineer Unit, Discharge Commemorative'.
Explosion on the front
lines Engineer cup.  
Inscribed '14th Engineer
Unit, Commemorative,
Kobayashi'.