Type  Aerometric filling fountain pen, working well. Product Name  Parker "51" Aerometric. Manufacturer and Year  Parker, made in USA – made sometime after 1952 when they stoped imprinting date codes. Length  Full...

Type  Vintage aerometric filling fountain pen, working well. Product Name  Parker "51" Aerometric.  Manufacturer and Year  Parker, made in USA -- 1951 - there is a clear 51 date code.  Length  5-3/8 inches. Filling...

Type Fully restored vintage fountain pen Product Name Parker 51 Vacumatic  Manufacturer and Year  Parker - 1947 (clear imprint shows T7) Length  Full size pen - 5-7/16" Filling System  piston/plunger...

Type  Fountain pen Product Name  Parker 51 Aerometric Manufacturer and Year  Parker, USA -- 1949 (the date code is a 9 with three dots). Length  Demi sized - 5 1/16" Filling System  Aerometric squeeze filling...

Type   Aerometric squeeze filling fountain pen Product Name   Parker 51 Demi, Aerometric. Manufacturer and Year   Parker, made in U.S.A. -- 1948 (there is an 8 date code on the barrel imprint).   Length ...

Type  Fountain pen Product Name  Parker 51 Manufacturer and Year  Parker - 1949 (the date code in the imprint is 9 with three dots) Length  Demi size,  5-1/8" Filling System   Aerometric squeeze filling...

Type  Fountain pen Product Name  Parker 51 Aerometric Manufacturer and Year  Parker, USA -- 1950s (there is no date code) Length  5-1/2" Filling System  Aerometric squeeze filling system. Tested and...

Type  Fountain pen Product Name  Parker 51 Aerometric, Demi Size Manufacturer and Year   Parker, made in U.S.A. -- 1950s (There is no date code, so that means it was made after 1952). Length  5" long.  Filling System ...

Type   Fountain pen Product Name   Parker 51 Aerometric Manufacturer and Year   Parker, USA -- 1950s, there is no barrel imprint so that means it was made after 1952. Length   5-3/8" Filling System ...

Type  Fountain pen Product Name  Parker 51 Aerometric Demi Manufacturer and Year   Parker, USA, 1950 (there is a rather faded 50 on the barrel imprint).   Length  5-1/8" Filling System  Aerometric squeeze filling...

Type  Fountain Pen and Mechanical Pencil set (boxed) Product Name  Parker 51A Demi.    Manufacturer and Year  Parker, USA -- 1950. (The pen has a clear 50 date code on the upper barrel).   Length  Fountain...

Type  Fountain Pen and Mechanical Pencil set (boxed) Product Name  Parker 51 Signet.   (In 1957 the model name changed to Parker 51 Insignia.) Manufacturer and Year  Parker, USA -- 1953. (The mechanical pencil has date code 53 on...

Type  Fountain pen Product Name  Parker 51 Manufacturer and Year  Parker,USA -- 1950s (there's no date code) Length  Demi size, right at 5" Filling System   Aerometric squeeze filling system, which we've tested and it's...

Type   Vintage Aerometric squeeze filling fountain pen, working well. Product Name   Parker "51" Demi Aerometric. Manufacturer and Year   Parker, made in U.S.A. -- 1948 (the date code is a clear and readable 8). Length ...

Type  Fountain pen Product Name  Parker 51 Manufacturer and Year  Parker, USA -- 1951 (possibly. There is a mark on the barrel that might be a 1 with no dots, or it could be just a random mark that happens to look like a 1). Length ...

Type  Vintage squeeze filling fountain pen in an uncommon color. Product Name   Parker 51 Aerometric. Manufacturer and Year  Parker, made in USA – 1948 (the imprint is clear, date code is an 8 with no dots indicating it's from...

Type  Fountain pen in an extremely hard to find color Product Name  Parker 51 Aerometric Demi Manufacturer and Year  Parker USA - 1948 (the date code in the imprint is an 8) Length  Demi size, 5-1/8" Filling System ...

Type  Fountain pen Product Name  Parker 51 Aerometric Demi Manufacturer and Year   Parker, USA, 1948 (there is a clear 8 on the barrel imprint).   Length  5-1/16" Filling System  Aerometric squeeze filling system...

Type  Vintage fountain pen in working order. Product Name  51 Aerometric. Manufacturer and Year  Parker, made in USA -- 1950s-60s (There is no date code, so it was made after 1952) . Length  5-3/8". Filling...

Type  Vintage fountain pen and "liquid lead" pencil in working order. Product Name  Parker 51 Aerometric, demi size. Manufacturer and Year  Parker, made in USA -- 1950s (There are no date codes, which Parker stopped using in the US around...