Onoto 1800 Mammoth OVERSIZE Fountain Pen 1920s. 14K & Rhodium HUGE 8 F/M Flex Nib. Made in London, England 1920s. What a wonderful rare pen this is. These model 1800 Mammoth are the LARGEST pen Onoto Ever made. They also have the largest Nib Onoto EVER made. Indeed these early Onoto 8 Nibs are among the biggest nibs ever made by anyone. Larger than a size 9 Montblanc 149 nib for example. Also MUCH larger than a size 8 Montblanc. These pens are VERY long. So long it doesn’t even fit inside my measure at over 6 1/2 inches capped. Longer than a Waterman 18 and 58 for example. But not as wide. This pens 8 Nib still has all its Rhodium plating (Rare Gold nib fully Rhodium plated). The nib is in fantastic condition with zero damage. Its original Iridium tips are good to last several more lifetimes. Very creative nib full of personality. It is a Clipless model in that it NEVER had a Clip fitted. I adore this pens minimalist simplicity. It is all about the business of writing and nothing else. This pen has zero ostentation or Bling. No shiny bits to distract the eye. This pen needs only its sense of history and imposing size to be Majestic. This is a KING among pens. Pen has zero Cracks, Splits or Repairs etc. It is made of BCHR (Black Chassed Hard Rubber). It has warmed a touch to a lovely dark Chocolate. Thankfully no one has been tempted to take a bite as this pen is Dent and Scratch free, The Extra Fine Barley Chassing is timeless elegance personified. The Onoto the Pen london etc… Barrel imprints are still readable. These pens are rare to find at ALL let alone so clean and crack free. These Onoto Plunger Piston fillers were first introduced in 1907. At the time they were the worlds first mass produced self filling pen. 3 or 4 years before Waterman Sleevefiller Sac pens etc. The filling system works by unscrewing the Blind Cap (Tail end) and pulling out the the plunger/piston rod (see photograph 4). Now place ALL of the Nib and Tip of the Front Section into Bottled Ink. Push the Plunger Piston down and wait 5 seconds to fill. Now Screw Blind Cap down tight. Only now you take nib out of the bottled ink. Takes 10 seconds and once you get the hang of it Onoto pens are easy to fill. They fill on the down stroke (opposite of a syringe) creating a vacuum behind the piston head as the piston head is plunged forwards it reaches the Feed it enters a slightly larger void allowing ink to be sucked inside the barrel. Very clever system for 1907. Also a UNIQUE by product of this system is that Ink Flow can be controlled. Onoto invented the worlds first Ink Flow Control pen. Indeed I have an Advert from 1908 advertising these pens as worlds First Leak Free pens with Ink Flow Control. It works by using the tip of the Piston Head Cone (male) and the base of the Feed which has the reverse Concave cone shape. Once the Blind Cap (Tail end) is screwed down tight the piston head and feed MATE and prevent Ink Flow. As you give 1/4 turn of the Blind Cap it allows ink to flow turn Blind Cap more and more ink flow etc… Ome s ready to write just add your favorite colour bottled ink… Perfect as a gift or treat yourself to a wonderful collectible fountain pen that can be used and enjoyed daily.. Please view all the Photographs they form large part of the description. All photographs are of actual pen. What you see is everything you receive. Any boxes or papers will ALWAYS be photographed if included. Fed Ex is also available. PLEASE VIEW MY OTHER ITEMS MORE PENS, Montblanc, Onoto, Conway Stewart, Parker, Waterman, Mabie Todd Swan, Sheaffer, Dunhill etc.. The item “Onoto 1800 Mammoth Fountain Pen 1920s. 14K & Rhodium HUGE 8 F/M Flex Nib. V. RARE” is in sale since Saturday, September 5, 2020. This item is in the category “Collectables\Pens & Writing Equipment\Pens\Fountain Pens\Other Fountain Pens”. The seller is “myhs10cd” and is located in Oswaldtwistle, Lancashire. This item can be shipped worldwide.
- Country/Region of Manufacture: United Kingdom
- Nib Size: Fine (F)
- Material: BCHR
- Nib Material: Gold, 14K
- Sub-Type: Fountain Pens
- Vintage: Yes
- Brand: Onoto
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