Mc Kinnon, Canada, c.1879. black chased hard rubber with hand engraved rolled gold snap cap and trims, eyewdropper filling. On the barrel crisp longitudinal imprint  "D. Mackinnon Pat Mar 21´76 Reissued July 15´79" , on the end transversal "Pat July 29¨79". It has a vacant blank. Excellent, it looks like never been used.
This has been the first fountain pen mentioned, in fact an stylograph, designed by the canadian chemist Duncan Mc Kinnon. A very similar one is shown on the book "Antique writing instruments" by Stuart Schneider and George Fischler 3r edition, pag 60.

#739 $USD 210

Very scarce example of "Escritor 44", Argentina, c. 1950, appealing striated celluloid greenish grey, screw cap with broad rolled gold band with a chain pattern and a blank reserve for engraving intitials, tapered clip ended in a arrow shape with a jewel on the top, hooded gold nib fine point, button filling. I do not know what kind of ink should use with this pen. Any way a new sac has been installed.Excellente condition, extremely scarce. #2781 $USD 60

Carey overlay eyedropper, New York, c. 1905. Carey is a special name for pen collectors: a New York City maker of the early Golden Age, whose products were both high in quality and made in limited numbers and are very hard to find today. This is a Vintage fountain pen by Carey Pen Company (1890-1915) marked on rim The "Carey" Fountain Pen. The Carey Pen Company made very high quality pens and distribution appears to have been primarily in the New York area. . The pen is a black hard rubber half-overlay taper-cap eyedropper-filler, the overlay features a highly detailed rhomboidal design with a blank non engraved reserve, unfortunately with gold test mark. The pretty flexible nib is has a nice iridium and is marked 14 Kt warranted and a kind of star design. The pen measures approx. 125 mm capped and 153 mm posted. #960 $USD 500
Monteverde Regatta, USA, alternating metallic red with fiber carbon bands, with trim of gun metal,  magnetic closure for both capping and posting,  fills with standard international ink cartridges or converter (included),  black steel nib, medium point. New without box  #3018 $USD 60  
Monteverde Invincia, USA, Carbon fiber, blue cap, black steel nib, fine point, cartridge or converter filling. MInt, no box. #3083 $USD 60