Joe, nice trifecta of Wharncliffe folders! Great information Charlie
Here is a Robeson pen knife folder. Wonderful pattern. The guy that sold it to me called it a Wharncliffe but it is not I don’t think. I would call it a dog leg or serpentine pattern pen knife. It has been polished/buffed before coming into my hands. Also, the primary blade (clip) has been heavily sharpened and reprofiled resulting in blade length loss and any belly completely taken out. Straight blade steel from what is left of sharpening notch/choil right to blade tip. The smaller blade has also been heavily sharpened and it looks like a previous owner deepened the sharpening choil. Other than that, it is in beautiful condition and not common.
This pattern is no. 622500. I have enclosed a photo of one shown in “Romance of Collecting” page 81. This one is pattern no. 623500. The three (3) in the pattern number indicates nickel silver liners versus a two (2) indicating brass liners like mine. Otherwise identical. The F & F of this folder is perfect and the “walk and talk” snappy.
Thanks for looking and adding any comments or further insight!
What do you think Charlie or anyone?