Originally Posted by bondi688
Probably you did not get that much. To double your money, it requires 7 years if times are good. So it was unlikely $25 will grow to 850 on saving bond interest alone. You may get that 3 doubles in 21 years with $100 in a stock index fund and get to $800.
Thanks for that, I wasn't sure how I could confirm what amount it could have been. I remember enough for it to stick in my memory 18 years later so at least a few hundred! It would have been years 1976-1994.