In addition to Russ Rulau's work on Hard Times tokens, Embossed tokens, Latin American tokens, and U.S. tokens in general before 1900, Russ also compiled two series of listings which were published in Numismatic Scrapbook magazine, one on the numismatics of Alabama (tokens, medals and paper money) and another on the numismatics of Ohio. There is an index to NSM, but it was published in 1964, so it doesn't cover the issues published from 1965 through 1976.

Over the years there have been some important articles published in Coin World, including many written by Russ Rulau, Bob Julian, and even a couple by myself. But, good luck in trying to find them. Because it was a tabloid, few people saved Coin World, and a full run of them may be a rarity today. In the 1970's, Coin World was available on microfilm, but I don't know how long it continued to be available in this form. The only index to Coin World that I know of is an internal index compiled by the Coin World staff.

To access the Numismatic Indexes Project (NIP), see:nip.money.org