Rampley & Co is an English brand founded by Elliot Rampley and Simon Cranston. Rampley pocket squares are made in England. They feature handrolled edges, and they are generously sized (about 42*42 cm; learn here how to choose the best pocket square size). The brand uses 100% silk fabrics (printed by Adamley in Macclesfield, England). Besides, there are small Harris tweed pocket squares (20*20 cm, woven in Scotland) with overlocked edges.
Some Rampley & Co pocket squares are decorated with prints of various paintings (for example, ‘The Battle of San Romano’ or ‘The Death of Major Peirson’). Besides, Rampley & Co offers white pocket squares with coloured edges and pocket squares with unique patterns (Ottomat tile, Arabesque, houndstooth, etc).
You can buy Rampley & Co pocket squares at Rampleyandco.com and TheBespokeShop.com. Prices start at 39 GBP (incl. VAT). Monogramming service is available (there are 13 font options); moreover, you can order a bespoke design. As far as I know, Rampley & Co. pocket squares are never available on sales.