So I've been finding a lot of $5 bills with the watermark deeply impressed and visible without any light shining through the bill, could this just be due to age or am I just finding a lot of rare bills. I get them from Wells Fargo in straps of 100 and usually it's about a quarter to a half of the Steck that the watermark of the number five is visible through the paper without excess light shining on it and or through it. I'll post some pictures of it later.