Hi,  I'm looking for help identifying the maker of these and possible value. 
 
From googling I can see it's a Chelsea design and has the Chelsea gold anchor mark, but is probably a copy by another manufacturer like Samson of Paris.  However the Samson plate I can find online with this design is slightly different, and I can't find any  pictures of marks by these manufacturers with the number stamps on them. 
 
Thanks for your help