Credits

Photos

The sample and screenshot photos are public-domain or CC0 files from Wikimedia Commons: "1903 VB Bottom.jpg" (Van Briggle, public domain), "Rookwood Pottery vase, Lorinda Epply, 1930, Markings.jpg" (CC0), "Hines Bros Opaque Porcelaine Manufacturers backstamp 1886-1907.jpg" (CC0), "Iroquois-china backstamp.jpg", "Wedgwood marking.JPG" and "Spode 1.JPG" (public domain).

Dating references

• Registered design numbers and the diamond registration mark: thepotteries.org
• Wording on British marks ("England", "Made in England", "Ltd", "Trade Mark"): thepotteries.org