Being that it was printed before 1991, it lacks most of the security features found in later bills. One way to check is to take a close look at the paper itself. A genuine bill should have little red and blue threads mixed into the paper. If you're still unsure, you can bring it to a bank for authentication. They have pens with specialized ink to check for fake bills.
It is a common $100 bill in circulation and has a value of $100.
no
There is no trick. I would recommend finding an example on ebay and just making sure that the colors and fonts are the same.
100usd
yes... it is real ... i have one of it...
1985 bills don't have security strips. They were first used in 1990.
no
Please check the date on your bill again and post a new, separate question. The last red-seal $100 US Notes were dated 1966. Any 1985 US $100 bill should have a green seal and the words "Federal Reserve Note" across the top.
I have a 1977 $100 bill and want to know the current value of it
No. Security strips were added starting with the 1990 series.
as of February 18, 2012, a 1000 peso Mexican bill from 1985 is worth about 75 cents.
50-100 or so