The Denbigh Commercial Rulled Book was originally a product of Waverley Stationery, Edinburgh (remember the Owl, the Pussycat and the Waverley Pen) and has been around for over 100 years. They are traditional strong well-made books with section-sewn pages printed with faint blue rullings on quality opaque paper and bound into rigid case-bound covers.
A great notebook. I consider it a design classic!
Great little, hardwearing book – I’ve had these style of books for over 40 years, well recommended!