This vintage black and white fancy letter A image is part of a set of 13 drop cap images from a single text. This letter reminds me of Aztec art.
The other letters in this set include:
B, C, E, H, I, L, M, N, O, S, T and U.
All of these letter images were included in the 1872 publicaiton A Book of Emblems with Interpretations Thereof. It remains unclear if the publishers Bell and Daldy used letters from a print foundry, they were drawn by the author Alfred Gatty (1809-1873) or they were drawn by some un-named artist.
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.