Vintage Japanese Eyedropper Fountain Pen. These pens were very popular during the first half of the 1900's, but fell out of major use due to the invention of automatic filling systems. However, they still maintained a niche interest during the second half of the 1900's and even till today.

 These pens were designed as eyedroppers, meaning ink was stored directly in the barrel without cartridges or converters. A key feature was the shutoff valve, a small mechanism that prevented ink from leaking during use or travel. This valve allowed users to seal the ink reservoir, ensuring a steady flow only when writing, which addressed issues like burping or dripping often seen in traditional eyedropper pens.

Maruzen was founded in 1869 and was instrumental in bringing fountain pens to Japan. The stationary store began importing fountain pens from USA and Britain. In 1915, the company created the Athena brand of pens. The pens were made by Eisaburo Sakasai until his death in 1937. Maruzen purchased his factory following his death. The Athena was made up until ~1970.

This pen has had the worn out, original cork shutoff valve seal replaced with o-rings. Providing a great alternative to prevent leaks near the back of the pen. 90 day warranty on service work. 

- Manufacturer/Model: Maruzen Tokyo Athena Eyedropper
- Year of Manufacture: Unknown, 1950's-1960's
- Color: Black, Brown
- Material: Ebonite (Hard Rubber)
- Nib: 14K Gold Warranted Fine Nib
- Filling System: Eyedropper w/ Shut-off Valve
- Condition Rank: C, Good Condition. There is an engraving of Japanese characters on the barrel. Please see Photos.
- Warranty: 90 days on service work
- 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.