There's also a very scarce Denver doubled die obverse that's worth a lot even in circulated grades.
There were probably more than twenty million of these set aside back in '75/ '76. many of these have since been spent but there are still large numbers sitting in rolls and bags. Gems aren't even very tough though choice gems and better are nearly as scarce as other dates of that era. The best examples can be found in either the '75 or '76 mint sets but are much more common in the '76 set.
Time don't fly, it bounds and leaps.