No offense, but I hope you aren't "investing" in Iraqi dinar. It's a scam. It has been a scam since the fall of Hussein. But I'm sure your husband has done lots of research already hopefully. If he happens to come across any Kuwaiti dinar...HOLD ONTO IT! It's one of the strongest currencies in the world...worth way more (last I was there, 4x as much) than the USD.
On the other hand, maybe I'm rich and didn't know it. I have tons of Iraqi dinar and Afghan "afghanis". Maybe I should check this out now that I think about it.