John II changed the company's focus from pottery to fine bone china.

He altered the manufacturing process by using 50% "calcined bone ash" in his porcelain compound.

The format of the code changed over the years but there are some good guides available that explain what the codes mean.

Aynsley used local Staffordshire clay and elaborate designs created from his own engravings to win a loyal audience in Stoke-on-Trent.

Aynsley poured his heart and soul into the new business, and due to his efforts his company would prosper.

On a whim, he decided to turn his obsession with collecting into a pottery business.

In 1775 John Aynsley opened the doors to his dream in Longton (formally known as Lane End) and soon developed a reputation as a master potter.

Well, this is where the ‘back stamp’ is most often placed. It can either be a mark identifying the maker of the china or a signature of the maker.

For some potteries, this mark identifies not only the maker, brand and/or pattern name but also the year and sometimes the month of manufacture. John Aynsley was the chairman of a local coalmine in Stroke-on-Trent, England.He had a passion for collecting tableware and ornamental pieces, specifically pottery and lusterware.John II brought great success to Aynsley China and prosperity to himself.He was elected the Mayor of Longton in 1886, and immediately set to acquiring new land and funds for parks and a much-needed community hospital.When John Aynsley was older, he turned the business over to his son, James.