One of the hundreds of stationery sets offered by the Eberhard Faber Company, the No. 44 “DIADEM” set is from the early 1920s.
There is a divided tray on top, a sliding tray on the bottom, and an ink blotter underneath the folding cover. The contents here aren’t exactly what the set originally came with but they are similar.
An early Van Dyke pencil extender with its original pencil: the handle is made of wood and the connector is made of metal.