(On Hold) This is a 1943 Blue Diamond Parker Vacumatic Major "Long" in Golden Pearl celluloid, with gold-filled trim, and a 14k gold two-tone, Fine, Semi-Flex nib. The pen has been restored, which included a complete disassembly, a gentle cleaning, an overhaul of the filling mechanism, ink flow adjustment, a nib tune-up, and a gentle polish with a soft cloth (by hand). This is a full-size pen, longer than most of the later Major models, measuring about 5.3" capped and 0.48" in diameter.
When it comes to flex, the conventional wisdom is that the best performance is to be found among vintage pens, particularly those that have not been abused. Finding such a pen "in the wild" is becoming more and more difficult, and, as a result, the prices of restored vintage pens with flex nibs have gone up substantially over the past few years. There's a lot of variability among vintage flex pens, even across the same model, and each pen is going to have its own unique feel and performance characteristics. Quantifying flexibility is, therefore, rather difficult. I always tend to to cautious and conservative in my assessments of flex, paying special attention to a nib's responsiveness, rather than total tines spread.
What you want in a quality flex pen is its ability to respond to your hand's subtle changes in writing pressure, direction, and speed. You want to be able to create a subtle transition between a hairline and swell, as that is the very foundation of Ornamental Penmanship and most other similar styles. The pen I'm offering today would be an excellent addition to a calligrapher's tool box. A pen that doesn't have a huge range, but it does have enough of it to be a superb instrument with which to create awesome calligraphy. The nib writes a Fine line of about 0.4 mm (on my paper), and opens up easily to at least a BB. The nib is smooth, soft, and feels as though it has a shock absorbing mechanism built into it. It offers you a comfortable, yet agile, ride across the paper, with that highly coveted gliding sensation. It will allow you to bring out the beauty, shading, and sheen of your favorite inks, thanks to its wet flow under pressure. And, it's the more rare two-tone variant to boot!
The pen is in excellent condition. Being the "Long" model, it should feel comfortable in most people's hands, with a high-capacity filing mechanism, and the timeless, gorgeous Golden Pearl celluloid, this pen is sure to put a smile on your face. The material has such depth, vibrancy, as if it's alive, with hundreds of tones of brown, gold, and yellow. The transparency is a bit ambered, but you can still see your ink inside the barrel with ease.