Japanese shells picked up on Kiska during WW2

[Mortmer]

I visited my Grandfather who served in the Aleutians during WW2 and he showed me a box with some Japanese shells and cap in it that he collected on Kiska. He asked me if I could help identify them and possibly determine the value of them.

http://spike.cs.umass.edu/~pbinder/ww2stuff/index.html

There are two fairly beat upon shells that look like 20mm cannon shells, one slightly larger shell with a red band on it as well as this one -

http://spike.cs.umass.edu/~pbinder/w...f/Images/6.jpg

Which goes together and slips into a cardboard tube.

I have no idea what the cap is.

Any help would be greatly appreciated.

Thanks

[jiipee76]

First 20mm round looks like Oerlikon design based 20x100RB caliber practice round,used by Imperial Japanese Navy in planes like Mitsubishi A6M Zero.

Bigger one looks like 25mm Hotchkiss design in caliber 25x163,license built and used in AA guns by Japanese.

Other 20mm round looks like Japanese own design in caliber 20x94.

You could give measurement of the casing lenght to be sure.Specially Oerlikon design had many different casing lenghts.

[billbert]

From the looks the CAP is a jap navy winter weight blue IJN DONALD DUCK cap..Billbert

[Mortmer]

Thank you! I will pass this on and ask for measurements.