Big green sketch pad by Silvine. 40 sheets of 100gsm recycled cartridge paper, bigger than A4 measuring 243 x 316mm.  About The Brand  Silvine is a proper British institution, made by Sinclairs in Yorkshire. It is the brand for lovers of quality everyday paper stationery.  Silvine has undergone many changes through the years, but some things will always stay the same - like our insistence on manufacturing all our products right here in the UK.