【Rare】Miyako Dye Acid Dye Navy Blue in Bottle with Instructions - Vintage Showa Retro

This is an authentic Miyako Dye (Acid) household dye from around the Showa 30s (1950s).
I heard that a family member acquired it to make dirt less noticeable on white work clothes.
Although it has been used, it is in good condition and is a valuable item with historical and documentary significance.

[Features and Highlights of this Item]
● Lighthouse Mark (Tōdai-in) Label
This design, modeled after Japan's oldest Western-style lighthouse, the Old Shinagawa Lighthouse, was intended to illuminate the world.

● A Engraving on the Lid
The heavy, chocolate-colored lid is engraved with the initial A for the founding Aoyama family.

● Dry Powder Condition
Despite nearly 70 years passing, the powder inside flows freely when the bottle is tilted.

● Includes Valuable Documentation
An instruction manual detailing Dyeing Methods and Dyeing Knowledge from the era is included. It features warm, handwritten-style illustrations of hand-dyeing, offering a glimpse into life at the time.

[Details]
- Brand: Miyako Dye
- Color: Navy (Color Number 4180)
- Contents: Dye bottle, original instruction manual
- Address: Nihonbashi Honcho, Chuo-ku, Tokyo (notation used after 1943)

[Condition]
This item has been used.
While there are signs of wear consistent with its age, such as scuffs on the exterior and discoloration and edge damage on the instruction manual, it retains the authentic condition of a vintage item.
*As this is a very old item, we cannot guarantee its usability. Please consider it for collection, display, or as a historical document.

The item will be carefully packaged with cushioning material and placed in a plastic bag to prevent water damage and powder leakage before shipping.

Please also refer to the attached photos for your consideration.
Thank you.