Not very good at understanding Silver Marks

Hi All, any idea what the silver marks are on this Oval Trinket Box?

 

You have, from the left, a maker's mark (William Comyns & Sons Ltd) Charles & Richard Comyns of London), the lion passant for sterling and the date letter O from 1929.

http://www.silvermakersmarks.co.uk/Makers/London-WC-WE.html#WilliamComyns

http://www.silvermakersmarks.co.uk/Dates/London/Date Letters O.html

 

@KEVIN AIREY , what is the material on the top? Tortoise shell?

 

That's tortoiseshell, very commonly used inlaid with silver.

 

Thank you, @Ownedbybear .

 

You can Google it.... "Piqué work"

 

Thank you!

 

It isn't pique, that's wee pins and points of metal as an inlay.

These are pique - the box is simply a straightforward shaped inlay.