This is a rare and desirable item. If not, keep watching, they will show up! You should also find the free newsletter MPCGram and next year you should attend MPCFest 18. The item “China aviation bond $50 very rare and desirable” is in sale since Monday, May 02, 2016. This item is in the category “Coins & Paper Money\Stocks & Bonds, Scripophily\World\Asia”. The seller is “bnrpressbooks” and is located in Port Clinton, Ohio. This item can be shipped worldwide.