Matthew Holbeche Bloxam - Companion to the Principles of Gothic Ecclesiastical Architecture (1882)
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As you may have gathered I have a weakness for many types of older scholarship even if, as in this case, I don't have much interest in the subject. This book's wonderful title, though, hides something even more specific - the book is entirely about vestments from the period of Edward VI as seen in church and other religious decoration. Since the author starts immediately on the topic with no introduction I'm not sure if there's any particular reason for selecting it - maybe personal leanings, maybe attempting to reconstruct what was lost during the dissolution of the churches, maybe there was just a lot of material. (By the way, the book that this companions can also be found on Open Library.) In any case good for that antiquarian itch even if you're not an architectural or Church historian.