DETAILS: From my personal collection ! This pen is in a really perfect vintage condition and one of the most beautiful and nicely balanced pens I've ever seen ! "51" model MKII, vintage from circa 1950's. Short feathered early clip. Cap insignia style engraved converging and grouped in five lines pattern 1/10 12Ct Rolled-Gold. Gold plated trim and gray mother-of-pearl cap jewel. 14K/585 solid gold NIB, scarce "B" broad tip (looks so, not marked outside). With aerometric stainless steel blade pressure filler ("4 times"). Translucent clear ink level view window on filler (see picture). Marked engraved on cap lip: PARKER - 1/10 12Ct R.GOLD - Made in England - Logo - "51" logo both sides of cap (see photos). Perfectly clean and shiny ! No case or instructions supplied, sorry. All original and authentic, All pictures are of the actual item. CONDITION: Mint overall, no flaws and insignificant use marks - seems almost as new ! Practically no marks overall (besides normal time and storage microscopic marks), no scratches or dents, no dings or scuffs to the cap and barrel. No cracks or repairs. Nothing negative to mention. No deformation to cap and barrel. Cap closes smoothly and holds tight and strongly both closed and posted. Clip is perfectly straight aligned and adjusts strongly to the cap surface. The Nib is perfect aligned and with complete iridium. Filling up easily. No leaks or blots. Ink level view easy. Absolutely no wear or brassing to the gold platings. MOP jewel perfect as new. Very crisp engravings. Writing perfectly and smoothly with good ink flow. Very polished and shiny all over. No personal engravings. In perfect working condition. PACKING & SHIPPING: Package Includes: Item as described and carefully packed with Catawiki Invoice. I will post Item by REGISTERED Mail with Tracking Number.