Category 'Forest China'
This is not a real manufacturer mark, it merely represents a distributor (trade)mark. It is commonly found on items originating from various manufacturers, for example Jaeger & Co. (Marktredwitz, Bavaria) or Retsch & Co. (Wunsiedel, Bavaria). The so far identified original marks cover the date range between 1955 and 1978.
Marks

Image 1-01
Transparent stand-alone 'Forest China' mark (above the series name 'CAMEO') next to that of an original manufacturer, Retsch & Co. (Wunsiedel, Bavaria).© 2004-2023 C.S.Marshall, all rights reserved