Is it needed/necessary to put a coin in a coin capsule if I put it into a 2x2? Recently I purchased some coins in 2x2's that were also in capsules. Coins that I want to save, I've only put them in 2x2's. Should I change what I'm doing?
Do you want to do something different? If not, don't. While certainly not necessary, this is your hobby to do with as you please. I've known others who would place air-tites into larger cardboard/Mylar flips simply to have something to write upon, but again it's a personal decision.
I know many don't care for them....as they are old school ,and seldom used any Longer ...but I have one complete Jefferson nickel collector in them and mylar flips with tags "Kointains" a very thin plastic capsule . I would put the coin in a kointain then in a mylar flip with the white tag with the coins information on it. Then stored in a plastic binder page. I also have another Jefferson nickel set raw also in a Dansco. Kointain - Direct Fit - Kointain, a two-piece capsule for coins, was invented in the late 1940s by Dr. Francis Epps. After researching all the known methods of numismatic storage, Dr. Epps concluded that none were satisfactory. He employed the services of a research chemist and designed a new type of coin holder that used a safe and impervious plastic. Kointains are convex so as to touch the coin only on its edges. Held at arm's length, a coin in a Kointain does not appear to be in any holder at all! Kointains are used by the Smithsonian Institution for the National Numismatic Collection and by the American Numismatic Association for the ANA Money Museum. Today, Kointains are produced and packaged by E & T Kointainer Co. under strict conditions to prevent contamination by dust, oil and grease. Direct fit Kointains come in a variety of the most popular sizes. For other coins, ring style Kointains consist of a direct fit capsule plus an inert ring that reduces the diameter size of the capsule to match that of the coin. Sold in bags of 20 or 100.