Canada had a ten year run on their project (roughly) with their Ice Island, and I have quite a few documented flight covers from it. More added as time allows, but this is a good sampling.
Many of the early covers had George Hobson's autograph; he was the Director of the Polar Continental Research Project. His name was lended to one of the islands; "Hobson's Choice".
With Eureka NWT Postmark
This one is for a helo flight.
