Celtic knot made with a "hidden" letter A.  Most of the lines are part of the original 9 celtic squares, but enough are distinctly part of the letter that you can use a different range of color glass for the letter than for the background.  Stained glass pattern is square format.  If you like this type of alphabet, then send me an email concerning which letter you would like.  Patterns sent as black and white pdf files printable on letter size paper.  Custom sizing (with the same aspect ratio) is no extra charge. In the subject line at purchase just give the dimensions you want this enlarged to.