Sailor introduced the first pocket pen in 1963 with the launch of the Sailor Mini. Platinum followed later the same year with its Poket PK-2000 (18k nib) and PK-1000 (14k nib). Pilot was the last of the big three to join the trend. Pilot introduced the Elite S in 1964. The "S" was meant to distinguished the new short pens from the full size Pilot Elite.

Pocket pens are designed with portability in mind. While capped, a pocket pen will measure less than 125mm from end-to-end. However, when posted, it becomes a full sized fountain pen. Pocket pens were popular in the 60's & 70's but recently have been making a comeback. Being easy to slip in a pocket or purse make pocket pens ideal for travel and those who are always on the go.

Sailor nib sizes are noted by a number on the nib. The numbers correlate to nib sizes as such:

1- Extra Fine
2- Fine
3- Medium Fine
4- Medium
6- Broad
7- Zoom
8- Music

There is no known use for #5 when it comes to nib sizes. The general rule is that scarcity increases as nib size increases. Medium is still relatively common, but seen much less frequently than either Extra Fine or Fine. Broad and larger nibs are quite scarce on pocket pens. 

- Manufacturer/Model: Sailor/Pocket
- Year of Manufacture: Unknown, post 1975. No date code visible on body or nib.
- Color: Black/Gold Accent
- Material: Black Resin
- Nib: 18K Medium
- Filling System: Cartridge/Converter (not included)
- Condition Rank: C: Item is in Good condition. Moderate scratches and scuffs can be seen on the barrel, cap, and/or grip section. No chips or cracks.
- Country of Manufacture: Japan

Condition Rank Guide:
-N: Item is in New Old Stock condition (NOS). Shows little to no signs of use apart from some minor handling wear.
-A: Item is in Excellent condition. Micro-scratches can be seen on the barrel, cap, and/or grip section. No noticeable scuffs, chips, or cracks.
-B: Item is in Very Good condition. Minor scratches and scuffs can be seen on the barrel, cap, and/or grip section. No chips or cracks.
-C: Item is in Good condition. Moderate scratches and scuffs can be seen on the barrel, cap, and/or grip section. No chips or cracks.
-D: Item is in Fair condition. Heavy scratches and scuffs can be seen on the barrel, cap, and/or grip section. May have small chips or cracks. See description.
-F: Item is in Poor condition. Item is not functional. For parts or repair only.