Can somebody help me on this?

I have these commemorative 5 dollar coins, and would like to know if these are silver or not, and if so, are what is the total amount of silver (90% 40%...etc)

Heroes of Pearl Harbor $5 coin 1991
Battle of Britain $5 Coin 1990
Heroes of Desert Storm $5 1991
The p-40 Flying Tiger $5 coin 1991

The reverses all say Republic of the Marshall islands

Thanks For The Help, and they are all proof coins

 

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They're Cupronickel to the best of my knowledge.

 

Yes clad coinage

Yes clad coinage

 

Thanks guys...
I'm lucky to make this thread, I have not been able to sign on for a little over a month, or two months now... And I'm just able to read this...

Thanks

 

Just had a look in the catalouge and was shocked to see just how many issues have been put out by the Marshall Islands LOL They certainly have created (Please pardon the pun) a money spinner

 

Goodness goodness look what the cat puked up nice of you to join us again T$

 

Were on earth did you get that pic from?? I would love to send a copy to the Mrs LOL

 

Google De Orc. the tool of kings!

 

Marshall Islands are like Liberia...they pump out a bunch of US themed commemoratives.

 

I've just been trying to get back on my friend