Petersfield is a wonder. The way it unfolds. I saw a full folio copy of Dante's Divine Comedy with Doré's woodcuts in there for £80... three decades ago? I'm still kicking myself that I didn't buy it.
Same here for a bookshop in Brisbane with pugin architectural drawings, and a bookshop in York which had Mervyn Peake original pencil drawing of his son for £300 in 1981