The Rectangle Coins
The Rectangle Coins
  • Home
  • The Basics
  • Gold Set
  • Silver Set
  • ID Guide
  • Research Notes
    • Help!
    • Videos & Presentations
    • References
    • Gold Obverse Design
    • Attributing Keicho Ichibu
    • Shotoku Ichibu
    • Attributing Man'en Nibu
  • Contact Me
  • More
    • Home
    • The Basics
    • Gold Set
    • Silver Set
    • ID Guide
    • Research Notes
      • Help!
      • Videos & Presentations
      • References
      • Gold Obverse Design
      • Attributing Keicho Ichibu
      • Shotoku Ichibu
      • Attributing Man'en Nibu
    • Contact Me
  • Home
  • The Basics
  • Gold Set
  • Silver Set
  • ID Guide
  • Research Notes
    • Help!
    • Videos & Presentations
    • References
    • Gold Obverse Design
    • Attributing Keicho Ichibu
    • Shotoku Ichibu
    • Attributing Man'en Nibu
  • Contact Me

Update Log

This website is a work in progress. As a result, I'll be updating it regularly when I have new pieces to add, research notes to share, etc. Sign up for email updates on the home page to be notified whenever a significant update goes up (usually two or three per year, as you can see below), or check back here to see if anything has changed.

May 2024

Major Additions

  • Added "Untangling Keicho Ichibu" presentation, along with a reorganization of all videos to a single page - "Videos & Presentations" under Research Notes

Edits to Existing Content

  • Added TrueViews for Man'en Meiji-style nibu and gold Bunsei isshu
  • Changed photos in Attributing Man'en Nibu under Research Notes to examples I own
  • Updated Gold Set banner
  • New photos of Koban and Mameitagin on Gold and Silver Set pages
  • Removed one question from the Help! page that's been resolved
  • Updated populations for all graded pieces
  • Added new gold- and silver-only PCGS registry sets

August 2023

Major Additions

  • Added Bunsei isshu to Gold Set with temporary slab photos
  • Added Ko-Fi shop

Edits to Existing Content

  • Added TrueViews and grades for Genbun ichibu and Meiwa Ko Nanryo
  • Swapped Man'en nisshu for higher grade example
  • Updated gold bu, shu, and silver index graphics (gold shu still missing photo of Bunsei isshu)
  • Minor updates to Help! page

Index Changes

  • Switched order of Sado and Shotoku ichibu

February 2023

Major Additions

  • Added Meiwa Ko Nanryo photos to Silver Set (this completes the set!)
  • Added ID Guide
  • Added new request to Help page

Edits to Existing Content

  • Updated Silver Set index graphic
  • Swapped Meiji nibu to a more attractive piece in the same grade
  • New banner images on home page and Silver Set
  • Fixed obverse and reverse descriptions for all Nanryo to match order of photos

Index Changes

  • Changed names of last two Keicho ichibu to "Single Hon Keicho ichibu" and "Double Hon Keicho ichibu"
  • Added note about Ansei isshu to Silver Set index

October 2022

Major Additions

  • Added Genbun ichibu to Gold Set
  • Added "Silver Overview (Video)" to Research Notes

Edits to Existing Content

  • Upgraded Tenpo ichibu from MS63 example to toned MS64 example
  • Updated populations for all graded pieces
  • Updated commentary on misattributed Man'en nibu stats
  • Changed photos to TrueViews and added grades for Meiwa Go Momme and Kansei Ko Nanryo
  • Updated Silver Set and Gold Ichibu index graphics

February 2022

Major Additions

  • Added "Attributing Keicho Ichibu" to Research Notes
  • Added The Standard Catalog of Japanese Coins to "References" (under Research Notes)

Edits to Existing Content

  • Reorganized order of Research Notes
  • Switched obverse/reverse photos for all silver Nanryo issues
  • Added photo of Meiwa Go Momme

Index Changes

  • Updated Keicho ichibu in Gold Set index to match names used in "Attributing Keicho Ichibu"
  • Changed order of gold nisshu and isshu to be chronological

October 2021

Major Additions

  • Added Kansei Ko Nanryo to Silver Set
  • Added information for Meiwa Go Momme and Meiwa Ko Nanryo to Silver Set (no photos)

Edits to Existing Content

  • Changed photos to TrueViews and added grades for multiple pieces
  • Resized some photos for more consistency
  • Added full set previews to indices

April 2021

Major Additions

  • Added "Gaku Ichibu (Video)" to Research Notes

Edits to Existing Content

  • Changed photos to TrueViews and added grades for six pieces
  • Added links to relevant Research Notes throughout site, including on the right column of individual coin entries whenever applicable
  • Updated populations for all graded pieces
  • Added PCGS registry set links to indices

March 2021

Major Additions

  • Added Man'en Ansei-style nibu to Gold Set
  • Added "The Coin Show 2021" to Research Notes
  • Added "Update Log" in the footer

Edits to Existing Content

  • Edited description for Man'en Meiji-style nibu
  • Added photo of Mameitagin to "Before there were Bars" on Silver Set

January 2021

Major Additions

  • Added Early Bunsei nibu to Gold Set
  • Added Shin Nanryo and Tenpo ichibu to Silver Set
  • Added "Shotoku Ichibu" to Research Notes
  • Added "Gold Obverse Design" to Research Notes

Edits to Existing Content

  • Updated Late Bunsei nibu and Meiji nibu info in Gold Set
  • Replaced Ansei ichibu coin/photo in Silver Set
  • Edited "Attributing Man'en Nibu" in Research Notes
  • Updated "Help!" in Research Notes

Index Changes

  • Added Keicho ichibu (old cast) to Gold Set index
  • Added Meiwa/Kansei Ko Nanryo distinction to Silver Set index

November 2020

Site launched

  • Update Log

The Rectangle Coins

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