There are 3 notices.
1.There is also something written by my guess.
So some of characters may be different from the real things.
Some of "can't read" are the word by which I think it was right from the shape of the gauge was written.
2.Maybe you notice.
Several gauges are different from this explanation.
http://s7.hostingkartinok.com/upload...88d9c528a6.jpg
I think there is some inaccurate part for the explanation picture shown first.
3.I made some mistake.
I wrote some wrong characters in the last picture. Therefore those were corrected.　Attention to red triangles.
Many characters of Japanese are changed in about 1946 to 1950.
I have written the modern characters before. Today, I used old characters.