I've come into possession of about a dozen issues of 'Tradition' magazine.
Any idea of what they are worth?
The English magazine, published by Belmont Maitland for Norman Newton, and later affiliated with Charles Stadden and Tradition of London, is worth a couple of bucks per issue. I believe that Tradition of London still sells back issues out of its stock. If you do a search on eBay, you can get an idea of what some sellers ask, and what some buyers are willing to pay. At shows, I see copies going for a dollar or two, most frequently.
The French magazine was launched much more recently; I think it was around 12 years ago or so? It's in French, so there's probably less of a market than there is for the English mag. I think it may be also be out of print, but I never bought it or followed it, so I may be off on it. Still, I'd say that an issue would be worth only a couple of bucks, depending on the buyer.