Bruce Draconarius’s “A Grammar of Blazonry” remains the canonical reference for the structure of blazons in the SCA, despite being more than thirty years old.
However, Bruce did make a few minor adjustments to the document recently, and unfortunately those changes have not yet propagated back to the version on the heraldry.sca.org website.
So I was very pleased when Bruce gave me permission to post the updated version here for ease of use in classes; it’s now available here: