So I was cleaning out my desk drawer and found a bunch of old bills stuffed in there, which got me thinking - are old 100 dollar bills worth anything? Turns out they actually might be. Been reading up on this and apparently some bills just sitting around could be worth way more than face value if you know what to look for.

Started digging into the $2 bills first since those seem to get the most attention from collectors. The 1928 series ones with red seals are apparently the holy grails - circulated ones can go for like $4 to $175 depending on condition. Even the 1953 red seals and 1976 bicentennial notes have some value if they've got the right markings or errors. There's also these star notes from 1995 that dealers are listing at $500 for uncirculated copies, which is wild for a $2 bill.

The $50 bills are interesting too. Old series from the 1930s-40s, especially ones with unique serial numbers or specific seal colors, can fetch $65-$100 if they're in decent shape. Then there's the star notes from 1985 that go for $60-$398 depending on condition.

But here's where it gets crazy - the $100 bills. A 1966 red seal $100 can be worth $135-$169. But the real ones to hunt for are the star notes and special serial numbers from different years. I read about 2009A series $100 bills with certain markings that are going for over $1,000. Like, that's 10x the face value just sitting there.

The key thing seems to be condition and rarity. Not every old bill is worth hunting down, but if you've got something from the early series with unusual markings, a star at the end of the serial number, or specific seal colors, it's definitely worth checking. The advice is to find someone who actually knows this stuff before you try selling anything - apparently there are dealers and auction houses that specialize in this. Pretty cool that there could be actual treasure in old wallets and drawers.