This Parker 51 Fountain Pen has converter in which I filled with ink and this pen wrote very very smoothly with what to me seemed like a a medium point- see photo #8. I emptied the cartridge/converter of ink and flushed with water. On the front of the cartridge converter it says Parker Made in USA On the cap band it The cap says- Parker. Length closed is 5 7/16" 138mm ---------I hope it is okay with Richard Binder from who's website I copied and pasted the following--- In 1961, Parker tried to extend its new cartridge/converter technology to the “51”. The resulting pen was withdrawn after only two model years. Thus, not very many cartridge/converter “51”s were made, and the model is something of a rara avis in the “51” world. Most collectors today think that the pen failed because Parker cheaped out by replacing the all-important ink collector with a solid block that didn't produce the desired writing qualities, but in my experience this is not so. I suspect that the real problem may have been high assembly costs due to the lack of any internal provision for automatically aligning the nib and feed with the shell, such as was present in the 61. -------- |