(a) probably not based on my personal observations (b) where is the spelling error? If you're thinking it's 'guaranty,' that's a non-standard but correct use o

(a) probably not based on my personal observations (b) where is the spelling error? If you're thinking it's 'guaranty,' that's a non-standard but correct use of the word (and in context, possibly a pun juxtaposed with "old English typography and curvy signatures").