Established in 1855, little has changed in this enchanting art supplies shop except the stock. Inside, it's charming and old-fashioned. It has creaking wooden floors, hundreds of wooden drawers and towering shelves which sweep up to the ceiling, lined with large glass jars of pigments and pastels.
The shop stocks a wonderful array of brushes, calligraphy equipment, a specialized range of gold leaf and other decorative effects, paints, pastels, paper, gadgets, sketchbook, some of which are hand-made, and books. They even supply quills to film companies! It’s worth popping in, if just to get a glimpse of the unique interior and to soak up the musty smells and long-standing Victorian atmosphere. Just LOOK at those fantastic jars of pigment in the pic below.
Perfect if you are still a bit confused by perspective and want some help when you are on location. This is one of the more sophisticated visual aids of this kind that I have found. You hold the viewer up close to the eye, and with one eye closed, a larger field of view is revealed, or, held at arm's length, you have a small field of view. There is a thick line running horizontally across the gadget to show the eye level. Radiating lines can be "lined up" with whatever you are trying to draw. You have a "landscape" view one side, and a "portrait" view the other. The landscape view is above. Here is a pic to show how the theory is applied: