Dickinson, Gary (2012). A Postal History of Marks Stamp Company.

A Postal History of Marks Stamp Company presents the story of Canada’s preeminent philatelic business during the first half of the twentieth century through a study of its key personnel, led by founder Elly Marks through most of that period, and its publications, along with a detailed analysis of its use of the mails and of its own stationery, which over the years featured some 50 different corner cards. Gary is the author of more than 100 articles and monographs about first day and other philatelic covers in BNA Topics, First Days, PHSC Journal, and other periodicals and is the editor of First Impressions, the newsletter of the BNAPS First Day Cover Study Group.