Compiled by the editors of The Connoisseur magazine and edited by L.G.G. Ramsey, these volumes were first published in the late 1950s (Volume III in 1957 and Volume IV in 1959). They are considered foundational illustrated guides for antique collectors and experts. Each volume acts as a detailed dictionary and reference guide, covering a vast array of topics including antique furniture, silver, ceramics, glass, tapestries, and carpets.