This one is similar to the previous post about paper folds. However this one appears to have had some foreign matter between the ink in the paper when it was printed. At first I thought it was a scrape but the paper texture is consistent. It's possible that someone might've doctored up with chemicals. I believe it is Scott 71, a common five cent value, with watermark type II. I believe it's a Zürich postmark from 1894. I love the stamp. The error occurred right where the five cent should be . I know it has no value but will get its own page in my collection.
