Daler-Rowney Optima Mixed Media Spiral 20 X 20cm Artbook PAPER20%OFF Roy Conklin patented the design

Roy Conklin patented the design for the first self-filling pen in 1901 and created the Crescent filler filling mechanism

replacing the complete front end of the pen

The Dragon and Cumulus is weightier than others in the range

and there are two orange fabric page markers as well

weighs 35g

Daler-Rowney Optima Mixed Media Spiral 20 X 20cm Artbook PAPER20%OFF Roy Conklin patented the designDaler Rowney has inspired creativity since 1783 and they pride themselves on providing top quality, sustainable art materials for all levels of expertise. The Optima Mixed Media pad is double spiral bound and contains 30 sheets of heavy 250gsm natural white paper with a light texture and which is acid free. It's ideal for use with both wet and dry techniques. Perfect for graphite pencil, pen and ink, pastel, charcoal, watercolour and acrylic.