File:Zeniza emaki ("Cash Mint Picture Scroll") 04.jpg
Zeniza_emaki_("Cash_Mint_Picture_Scroll")_04.jpg (516 × 226 pixels, file size: 55 KB, MIME type: image/jpeg)
Captions
Captions
Summary
[edit]DescriptionZeniza emaki ("Cash Mint Picture Scroll") 04.jpg |
English: A faithful reproduction of a 1728 scroll from the Sendai Domain that the depicts the manufacture of copper cash coins in Japan.
"Anciently Chinese coins were cast using clay molds, but from the early 600's the use of the sand mold method became common. Japan used the sand mold method from the very beginning of its minting history in the late 600's. The sand mold uses two frames filled with fine grain wetted sand, and a set of carefully manufactured "seed coins" or "mother coins." The man on the right is laying the mother coins on the sand in the mold. He also lays down rods to create the basic path for the molten metal to flow into the space of each coin. After the mother coins are laid out, the second frame filled with sand is laid on top. The man on the left is walking on the paired frames to make sure that the sand presses tightly to the mother coins, so as to produce a fine image. After the mold of the mother coins is pressed sufficiently, the front and back of the mold are separated. The man on the right is cutting clean paths to each coin for the molten metal. The man in the center is removing the mother coins leaving the negative imprint in the sand. The man on the left is heating the sand filled frames with smoky pine. This dries the sand but the resin smoke helps the sand stick together to maintain its shape. The carbon also helps the molten metal flow more smoothly. Coins fresh from the mold are usually covered in pine resin soot." - Dr. Luke Roberts. "After the mold is prepared then the two sides are clamped tightly together, as on the right side of this picture. The man on the left is finishing the final stages of preparing the molten metal. This was a mixture of copper with lead, tin, nickel, iron or other metals including, I was surprised to learn, toxic metals such as mercury and arsenic. Copper was usually predominant but some coins contain so much nickel or iron that they can be picked up with a magnet. Others contain so much lead that they are chalky and grey. The relative proportions of metal were often subject to availability and market forces." - Dr. Luke Shepherd Roberts. |
Date | |
Source |
The Manufacture of Cash Coins. (Professor Luke Roberts of the University of California at Santa Barbara) Originally from: The Zeniza emaki ("Cash Mint Picture Scroll") which is reproduced in Nihon Ginkou Chousakyoku ed., Zuroku Nihon no kahei, vol.3 (Tokyo: Touyou Keizai Shinpousha, 1974), pp. 72-79 with notes on pp. 116-117. |
Author | Sendai Domain |
Licensing
[edit]Public domainPublic domainfalsefalse |
![]() |
This work is in the public domain in its country of origin and other countries and areas where the copyright term is the author's life plus 70 years or fewer. ![]() Note that a few countries have copyright terms longer than 70 years: Mexico has 100 years, Jamaica has 95 years, Colombia has 80 years, and Guatemala and Samoa have 75 years. This image may not be in the public domain in these countries, which moreover do not implement the rule of the shorter term. Honduras has a general copyright term of 75 years, but it does implement the rule of the shorter term. Copyright may extend on works created by French who died for France in World War II (more information), Russians who served in the Eastern Front of World War II (known as the Great Patriotic War in Russia) and posthumously rehabilitated victims of Soviet repressions (more information).
|
This file has been identified as being free of known restrictions under copyright law, including all related and neighboring rights. |
https://creativecommons.org/publicdomain/mark/1.0/PDMCreative Commons Public Domain Mark 1.0falsefalse
File history
Click on a date/time to view the file as it appeared at that time.
Date/Time | Thumbnail | Dimensions | User | Comment | |
---|---|---|---|---|---|
current | 02:45, 21 March 2018 | ![]() | 516 × 226 (55 KB) | Donald Trung (talk | contribs) | User created page with UploadWizard |
You cannot overwrite this file.
File usage on Commons
There are no pages that use this file.
File usage on other wikis
The following other wikis use this file:
- Usage on en.wikipedia.org
Metadata
This file contains additional information such as Exif metadata which may have been added by the digital camera, scanner, or software program used to create or digitize it. If the file has been modified from its original state, some details such as the timestamp may not fully reflect those of the original file. The timestamp is only as accurate as the clock in the camera, and it may be completely wrong.
Rating (out of 5) | 4 |
---|