Stunning drawings on antique envelopes

A little while back my dear friend, author Ruby Blessing, alerted me to Mark Powell's stunning drawings on antique envelopes, maps and newspapers. Talk about putting my picture post attempts to shame! I wrote to Mark and he gave me permission to upload some of his pictures for you here. Which is your favourite? There's loads more on Mark's website, or you can like his Facebook page, if you want to see more.