A little bit about Ironstone from wiki, if you want to read, but the most important thing to understand is that it was invented by a cheap brit, clearly something i know about, being cheap and british....
Im envisioning shelves straining under the weight of all these finds one day..
Ironstone china, ironstone ware or most commonly just ironstone, is a type of vitreous pottery first made in the United Kingdom in late 18th-century. It is often classed as earthenware although in appearance and properties it is similar to fine stoneware. It was developed in the 19th century by potters in Staffordshire, England as a cheaper, mass-produced alternative for porcelain. Its name is derived from its notable strength and durability, and was closely associated with the company Mason's following their patent of 1813, with the name subsequently becoming generic. The strength of Mason's ironstone body enabled them to produce ornamental objects of considerable size.
Antique ironstone wares are collectable, and in particular items made by Mason's.
Ironstone was patented by the British potter Charles James Mason in 1813. His father, Miles Mason (1752-1822) married the daughter of Richard Farrar, who had a business selling imported Oriental porcelain in London. Subsequently Mason continued this business, but after the East India Company ceased the bulk importation of Oriental porcelain in 1791 he began to manufacture his own wares. His first manufacturing venture was a partnership with Thomas Wolfe and John Lucock in Liverpool, and he later formed a partnership with George Wolfe to manufacture pottery in Staffordshire.
Subsequently other manufacturers produced ironstone, with James Edwards (1805-1867) of the Dalehall Pottery in Staffordshire also credited as its pioneer. Other sources also attribute the invention of ironstone to William Turner of Longton, and Josiah Spode who is known to have been producing ironstone ware by 1805, "which he exported in immense quantities to France and other countries." The popularity of Spode's ironstone surpassed the traditional faience pottery in France.
A variety of ironstone types was being produced by the mid-19th century. "Derbyshire ironstone" became a particularly popular variety in the 19th century, as well as "yellow ironstone". Patterns with raised edges became popular in the mid-19th century, including "cane-coloured" Derbyshire ironstone. Some of the most well-known and collectable British ironstone manufacturers of the 19th century include: