Been watching and buying these for years, They are really baby Bonds, $25 each. Yield varies with price. Redemption at $25 each. Somehow these are tax free - I have lots of these. Made big gain from $19.90 plus constant tax free interest payment (not dividend) of 7% in last weeks purchase. These are huge gainers to $25 when at $20 plus tax free 7% for life. Will not get higher than $25 but a sure return.