De La Rue Instruments Ltd produced training and demonstration notes specifically for calibrating and testing currency-handling machinery — sorters, counters, ATM validators, and similar equipment. These are not legal tender and were never intended for circulation. The paper, inks, and security feature placement are engineered to simulate real-note parameters rather than represent any actual issuing authority.
Collector interest is genuine but niche. Provenance from decommissioned bank equipment testing programs is the norm.
De La Rue Instruments Ltd produced training and demonstration notes specifically for calibrating and testing currency-handling machinery — sorters, counters, ATM validators, and similar equipment. These are not legal tender and were never intended for circulation. The paper, inks, and security feature placement are engineered to simulate real-note parameters rather than represent any actual issuing authority.
Collector interest is genuine but niche. Provenance from decommissioned bank equipment testing programs is the norm.