I often see/have owned sketchbooks from various brands that are described as 'Goldline'. What is Goldline? Is it a type of paper? A specific weight? A manufacturer?
Goldline is a registered trademark and brand name of ExaClair, a company that owns a number of more commonly known brands in the general areas of paper, fine arts supplies, office supplies, etc. The Goldline trademark is applied to a range of products from various companies under the ExaClair umbrella, like Clairefontaine and Exacompta.