Founded in 1975, the Moulton Bicycle Club is probably one of the oldest clubs still active and keeps the flame alive through annual meetings in Bradford-on-Avon, England, and the exclusive Moultoneer magazine, which arrives in members' mailboxes 3 or 4 times a year.
The Multoneer brings user stories, as well as some news, trivia, a buy and sell section, etc. It comes in a compact A5 format, with color or black and white pictures.

Meeting in Bradford-on-Avon
You can join, even if you don't (yet) own a Moulton, on the website: moultonbuzz.com. Besides receiving the Moultoneer, you get access to the annual meeting at Moulton, buying and selling used items, and exclusive online content such as all past years' magazines in digital format. The cost for Portugal (and the EU) is approximately €30 annually via PayPal. Very affordable considering what it offers and for which you only pay (and barely) the club's costs, such as magazine and shipping, events, etc.