Do a search for the Chinese firm Hong Dian (also written HongDian) and you will find, primarily on Amazon or Etsy, a list of pretty generic fountain pens though none are clones and one model does stand out as slightly different. A thin straight pen which has obviously been designed for the cap to be posted. Depending on the colour or finish this pen either has no name or is called the Forest, though as far as I can tell the model is actually the 1851 (on etsy, however, the range of 1850-1861 is used).