Possibly Dave although a lot of the copper varieties that are not recognised and some even in unc 1854 you can pick up at a similar price than an 1860 F10.
However leaving the varieties and proofs out not lots of dates 1825/60 but people dont seem to collect like the bronze.
You could buy a nice 1831,34,37 for the same price as a really low grade scarce variety bronze £500/600 ish.