There aren’t too many places in Bangkok like Mohamed. From the outside, it might look a bit of a mess, with its glass cabinets and shelves seemingly spilling over with products, but this is part of the charm. Open for 87 years, Mohamad sells pens and papers imported from Europe. These include ink pens from the likes of Pelikan, Venus and Schaffer, mostly from the 70s and 80s, and stationery from the 50s and 60s. Drawing paper starts from B20 and pens from B1,000. If you’re a collector, you best drop by regularly, as the shop carries many rare models which aren’t easy to track down.