I have ultrasonically cleaned the NIB, feed, collector, breather tube, hood, barrel, and NIB. Replaced the old diaphragm with a new, properly sized one. Hand polished the Sterling Silver Cap, Gold Filled Arrow Blue Diamond Clip, Clutch Ring, and 14K Parker NIB. Cleaned, Buffed, Polished and Waxed the barrel, blind cap, and hood to bring back the vibrancy and to protect the material of fountain pen. This Parker 51 measures 5 1/2" capped and 6 1/8" posted.
This fountain pen cap, barrel, blind cap, and hood are in magnificent condition with no chips, cracks or repairs. The Sterling Cap has the Gold Filled Blue Diamond Split Arrow Clip that has been polished and displays no brassing on the clip. The Sterling Silver Cap is really clean but does display some scratching that commensurates with the age of the pen. The cap secures to the barrel snugly. The cap has the chevron cap banding with parallel lines repeating all around the cap. The cap is clearly stamped with, "STERLING SILVER MADE IN U.S.A.". The blind cap has the aluminum jewel and the cap has the pearlized plastic jewel both in excellent condition. The blind cap is clearly and crisply stamped with, "PARKER "51" MADE IN USA with the date code 1 (for 1941) in the 4th Quarter". The clutch ring retains most of its gold filled center.
The Parker 51 has the correct Speedline filling unit for a 1st-year model. The filling system, typically in my tests with water, will fill nearly full in roughly 9 to 11 presses. I have greased the Speedline pump and now operates as it was intended to and very smoothly.
The Parker NIB is 14K and has a fine point measuring roughly .45mm when measured with digital calipers. When writing a sample with this NIB, it writes with a fine stroke measuring at .48mm when measuring with digital calipers. The writing sample was done with the actual pen in the images that are listed for sale. The writing sample was used by dipping the NIB in Parker Quink Blue Ink.
Any specks of white in the images are from the cotton that I used to clean the barrel and cap.
This vintage Parker 51 Vacumatic Fountain Pen is a first-year production pen and is one for the collector cabinet. I would consider this Parker to be in Excellent+ Condition. It is ready to write or just add it to your writing arsenal collection.
NOTE: There is no blind cap/barrel/hood discoloration - the reflection of the camera body may give the appearance the color is not matching, but I will assure the color is matching across the pen hood, barrel, and blind cap.
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