It is probably a stock piece from a print foundry but we know it dates back to at least 1860 when it was included in a biography of that famous printmaker Gutenberg. I tried cleaning it up a bit but unfortunately the diagonal portions of this open letter W drop cap image are a bit pixelated. Hopefully, once you add a bit of color to the open areas of this vintage letter, it will be less noticeable.
This image is copyright free and in the public domain anywhere that extends copyrights 70 years after death or at least 120 years after publication when the original illustrator is unknown.