Looking gothic and medieval, this vintage drop cap letter M image is copyright free and can be used however you wish.
Additionally, there are 17 other fancy letter images that are part of this letter set which can be found here: A, B, C, D, E, F, G, H, I, J, K, O, Q, R, S, T and W.
The letter images in this group are most likely from a print foundry. The foundries provided publishers like Gould and Lincoln with moveable type for flourishes and drop cap lettering. They used this gorup of letters to add interest to the book Anecdotes for Boys. Entertaining Narratives and Anecdotes Illustrative of Principles of Character written by Harvey Newcomb and released in 1851.
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.