【Amami】Historical Fountain Pen PARKER52 Demonstrator Rare Item

I am listing items from my collection of fountain pens and writing instruments for sale.
The collection mainly consists of vintage items rather than recent products, so the condition may vary for each item. Please check the description and photos for details.

■ Item Number: AM-020
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Product Name: PARKER 52 Demonstrator
Brand: PARKER / made in USA
Era: Around the late '51s
Nib: K14

【About the Product】
Based on the engraving on the body, the name is identified as PARKER 52.
Although I have searched multiple times, I couldn't find detailed information about the "52," but the precision of the product seems undeniable.
From the transparent parts integrated, there is a possibility that the manufacturer created it as a promotional demonstrator.
This particular piece has various engravings, with the metal cap end featuring the word "PARKER" and the dark brown resin shaft engraved with "PAKER52 NEWSTYLE".
When you remove the cap, there is a metal barrel cover inscribed with "R14K," indicating a 14K gold filled material.
Twisting off the cover reveals a unique small nib section with the engraving "PARKER K14S."
Taking off the shaft exposes the brass-made spring-loaded ink filler mechanism used by PARKER at that time. There is an engraving that reads "PT NO. ******* PARKER MADE IN USA" on the part visible through the transparent section, although it is hard to read.
The use of metal throughout gives it a substantial weight, providing a special tactile experience.
The writing is firm but elegant, offering a pleasant writing experience.

【Condition】
It exhibits the unique maturity of vintage items, with signs of wear, surface deterioration, and aging, but overall it is in good condition.
It can still absorb ink, but it will be shipped in its current state.
A historical model, released from a collection, so please enjoy its rarity and uniqueness.

【Shipping Method】
For shipping this item, I will use a prepaid courier service.
Please note that we do not ship items on Sundays or holidays.
Since Mercari does not disclose the seller's phone number for privacy reasons, please inform me via the transaction board after making a purchase.