This is One Thing, a column with tips on how to live.

Few items are as unique as the Pentel Kerry mechanical pencil when it comes to stationery’s classic design and inventiveness.

Pens where orginally supplied to the UK from Canada until 1941 when some models where made in Newhaven. The factory closed in 2009. The Slimfold fountain pens (left) were sold in 4 colours {black ...