The San Francisco wholesaler turned cases, cables and Bluetooth speakers into a compact B2B catalog. Its surviving trail is a field guide to merchandising commodity hardware - and a warning about what happens when the catalog outlives the company behind it.
A 300-year-old Italian craft, a Long Island factory, and the strings on a very large share of the world's guitars. Inside how D'Addario turned a family trade into the industry's workhorse.