That is right - there's only one. A journalist acquired it from a Bank of Canada official at the launch of the Journey $5. It was later sold on eBay to an Ontario collector who, as far as I know, still owns it. It is not a test note in the sense that we collectors use the term. Test notes are released into circulation in quantity as an experiment to determine wearing properties. This JHS note was for internal use only, what we might call experimental or production trial material. It was not intended to get out, but through an accident, it did. It is mentioned on page 292 of the 17th ed. Charlton but it is not otherwise listed or priced.