The document summarizes information about the Coleoptera collection at the Natural History Museum in London. It finds that sending specimens out on loan is an extremely efficient and cost-effective way to have material identified compared to attempting identifications in-house. On average, loans result in over 12,000 undetermined specimens being identified each year, along with gifts adding over 3,000 specimens to the collection. This represents a significant return for a relatively small investment of curator time and postage costs. Loans are therefore considered vital for ongoing collection development and research.