The Royal monogram is that of Prince Alfred, Duke of Edinburgh (1844-1900), second son of Queen Victoria.
A suite of three five-light candelabra and six candlesticks of identical design by Robert Garrard, 1866/67, are in the collection of Queen Elizabeth II. The suite is illustrated in A. G. Grimwade, The Queen's Silver, 1953, pl. 56.
Another similar pair of five-light silver-gilt candelabra, by Sebastian Garrard, 1903, sold in these Rooms, October 27, 1986, lot 621.