Clean cap with no dents or dings. This one is clean and crisp. Slight score mark noted where clip moved. Pristine, perfect caps with early lined sterling silver caps with the wider spaced line pattern. With patience, though, you can repeatedly suck water into the pen and expel it until it comes out clean.
Internally, has flaking of the chrome finish to the filling unit. I picked up the set to look at it, and immediately knew I had to have it. I can't find anything wrong with it. This one has the solid gold clip and tassie. Beautiful pen with quite smooth point, especially for such a fine nib, which is borderline Extra Fine. Most of the rest of the parts are by Parker. The clip is post first year, with small blue diamond.
Excellent cap with no dents or dings. Gold filled caps with a square repeating pattern and solid 14K clips, tassies, and pencil point. Hood also has inlaid blue diamond. For this reason we install fresh diaphragms in all Vac-fillers that we sell. Couple literally pin marks to cap, no frank dings.
Four cap patterns originally were manufactured: Smooth, Empire, Fish Scale and Coronet, though some low run variants appear to exist, too. Certain colors, however, such as Nassau Green, are more common in the double-jewel version. Pristine set, near mint with perfect caps. Clean cap with no dents or dings and just overall wear from use. No brassing and no dings. Mint, new old stock, never filled. Make of that what you will.
The wide-lip cap is the better of the two original Aero caps. Excellent condition with no dents or dings. Aerometric fountain pen and cap actuated push repeater pencil. Moderate preservation of original cap frost. A fun but exhausting project. As user pens, the later aerometric filler holds an edge over the earlier vacumatic pens, mostly because they are almost always working, and need little or no repair, except for a good flush of the old dried up ink.
The imprint is faint, probably polished at one point. And, indeed, this one lacks any imprint. Nicely preserved original cap frost. Original Demonstrators are not common. Cap has no brassing and no dings; one or two tiny pin marks.
Not easy to find clean. This supply was soon exhausted, however, and before long it became clear that even the replacement barrels were crack-prone. Neatly engraved with 2 initials. It appears to be a matte black, not shiny like any other 51 black barrel. Caps are crisp and clean with no dents, dings or engravings. Cap has one ding and some brassing near cap lip, otherwise very presentable.
Nice smooth wet fine point. The least innovative aspect of the 51 at least originally was its filling system: Parker re-used the system from their Vacumatic fountain pen. This one has one of the best I've handled. Perhaps part of a Smarrt Set? Internal chrome filler unit with some wear to the chrome. This one is very clean with no cracks or crazing in excellent condition.
All pens are single jewel. Printed on cellophane pen sized bags, these are a set of instructions on how to fill your Vacumatic 51. Nice Fine-Medium nib pushing toward full medium. Only the rarest colors and cap patterns command high prices. Nib is gold and jewel is Pearl. Caps have 5 converging line pattern.