For anyone keeping track at home, the other non-clothing objects Hob has on his person at this time (in addition to the book and the earring, and the handkerchief Jojo currently has) include:
1) A silver cloak pin in the shape of a flower, pinned to his jacket lapel (c. early 1900s; purchased at an estate sale because it looks like Eleanor's favorite one, it isn't actually the same one)
2) An armillary ring, all its markings worn off with age (c. early 1800s, a gift from a friend when he was in the Navy)
3) A quartz-crystal wristwatch with a date and time display which he's trying really hard not to fixate on the inexorable forward-ticking of (c. early 1980s, excitedly purchased at a department store)
4) His rosary, worn under his shirt as a necklace, made of rubies and gold and in Earth terms by far the most expensive thing he owns (c. mid-1700s, commissioned incredibly illegally)
5) A folded-up page of handwritten notes and the accompanying ballpoint pen (c. last week's department meeting)
6) Reading glasses that don't do anything because he's been pretending to have deteriorating vision (c. late 1980s, bought from a costume supply store along with a bunch of things for the student theatre group)
5) Professor Rob's wallet, containing a driving license (claims he was born in 1949), university ID, several hundred £, a shiny new debit card (introduced in England two years ago, he was very excited, but even more useless here than the paper money), a credit card, a London Public Library card, and several business cards with his work address, phone number, and office hours printed on them
He's really rather regretting not having such objects as his current favorite boot knife (hard to wear with oxfords, and also illegal now), or the pager he'd usually have been carrying in corporate finance mode instead of professor mode, or literally any money with actual metal in it, although that last one has fortunately been at least temporarily solved by Aribeth paying him for their quest. Or a gun, really, that'd be a great way to solve medieval fantasy bullshit, but he can't even actually judge himself for that one, it would have instantly shredded his identity if anyone had spotted Professor Rob with such a thing. He'd gotten away with the knife for ages claiming it was a gift from his father who was really into hunting, but nobody has deeply personal nostalgic attachments to their handguns. In any event, none of these objects, of course, are magic - wait. Hm. Does 'blessed' count. He will ask Jojo in a minute.
Anyway. Blacksmith.
"Good morning!" he says to whoever might be in the Shining Knight. "I hear you might be more willing than the temple to sell me my favorite inelegant spiky peasant weapons."