Well, this isn't something you see everyday... items signed by Simeon Solomon are fairly scarce in the first instance but an association copy in which he presents a book to his friend and fellow nineteenth century roustabout Algernon Swinburne is likely to make this an estimate-busting lot when it comes up for sale at Bonham's in Los Angeles on the 10th February. The pre-sale estimate is 5,000-7,000 USD. The book itself is a much more important early piece of gay literature than it is sometimes given credit for. There is a really good write up of this lot on the Bonham's auction page.
UPDATE: As predicted, this item sold well. Over twice the top estimate in fact at $17,500. Well done Simeon, if only he had known such riches in his lifetime.