Help please to translate into English Aviation tool Identification

davy · 23 Feb 2018

I have just been given this item and was hoping that any member could help identify what it is and what is was used for, I think it is from WW2 era and was Aviation tool. I have attached a few photos and photos from book which is in Japanese, any help would be appreciated.
thank you
Davy

Grandpa Frank · 23 Feb 2018

When we get someone on line who can help with reading the Japanese , I think you will find this is a WWII Japanese aircraft sextant used to plot your location while over water , etc. It worked much the same way a shipboard sextants were used for many years.

Mike Cash · 23 Feb 2018

Bubble Sextant. There is a date of March 19, 1945 on one of the labels.

Help please to translate into English Aviation tool Identification

davy

後輩

Attachments

Grandpa Frank

Sempai

Mike Cash

骨も命も皆此の土地に埋めよう

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