no
I believe the watermark began on the 1990 series so no 1988 was still too old.
Yes, but only on modern bills. When looking at the front side of the bill, the watermark is to the right, visible when held to light. It shows President Jackson's portrait.
At least $100 US dollars (isn't it obvious?)
No. Only $5 and up have watermarks, and only those issued since 1996.
He's not on any US coin. He's on the $10 bill.
It should have a portrait of Benjamin Franklin in the center of the bill. If you're referring to the watermark of Franklin, that wasn't added until series 1996.
Ulysses S. Grant is on the $50 dollar bill. This bill weighs about 1 gram, has an identifying watermark, and is printed on cotton and linen. It was first printed in 1861.
Yes, most U.S. bills from 1996 on, including the $20 note, have watermarks.
Green and white $5 bills with the large portrait of Lincoln inside an oval have a somewhat fuzzy watermark that's similar to the portrait. Newer gray and purple fives have the number "5".
he is on the 10 dollar bill
Now a days there are security features on the 100 dollar bills to help you detect if the bill is counterfeit or not. One of the features is a watermark. If you hold the bill up to the light you will see a faint image of Benjamin Franklin to the right of the portrait.