If you like a challenge...

[up north]

I always pick up pottery and glass when I detect construction sites. Sometimes you can find a marble or even intact pieces. Not sure if this is really old or not but it would be neat to know something about it.

 

[Lucas]

Victorian.

 

[Blacksheep]

Arthur J Wilkinson, perhaps?

http://www.oldandsold.com/pottery/greatbritain3.shtml

http://www.thepotteries.org/mark/w/wilkinson.html

 

[traderoftreasures]

The Lion and the Unicorn are symbols of the United Kingdom.

 

[Lucas]

The Lion and the Unicorn are symbols of the United Kingdom.

... and the arms and crown are those of Victoria... which makes it... Victorian English.

 

[Mackaydon]

The center letters read: HONI SOIT QUI MAL Y PENSE, a French saying meaning 'Shame upon him who thinks evil upon it'. This is the motto of the (British) Order of the Garter.
Don.....

 

[timekiller]

I've sat here and almost gone blind looking at this book of marks I have.To say the least there are alot of those marks that are very close.
So here is what I can add to this.
Many companies in England,the U.S.,and Europe used the British Royal Arms or a close version as a back stamp.The arms included an oval central area with a lion on one side and a unicorn on other.The oval shield was divided into quadrants after 1837.Before that time the shield had an extra oval or shield-shaped design in the center.From 1801 to 1814 the mark included a cap over the shield.From 1814 to 1837 the cap was changed to a crown.The marks used outside England often made minor changes.Many firms used human figures,birds,or other types of animals.Because the wares from England were considered the best available,it was good business to try to look british.Design,shape,and even the marks were deliberatly misleading.A small print mark,often blurred,could easily be misread.
The Royal Arms mark was so popular it was used by dozens of factories and it is impossible to give an all-inclusive listing here.

 

[Mackaydon]

The writing below spells out DIEU ET MON DROIT.
"Dieu et mon droit" is the motto of the British Monarch. It appears on a scroll beneath the shield of the coat of arms of the United Kingdom. The motto refers to the divine right of the Monarch to govern and is said to have first been adopted as the royal motto of England by King Henry V in the 15th century.'
Source: Wiki

 

[timekiller]

The best that can be said by me is it is after 1837.Just tooooooooooooooooooooo many of those marks.Three pages in this book alone with that type mark.And is said not able to list them all so.
Take Care,
Pete

 

[up north]

Thank you Treasurenet! You guys have added a whole new dimension to our hobby.