Quimper de LaHubaudiere Plates Odd Marks Date Info

[morewoodplease]

Need help dating these two old Quimper plates.  I have searched for months to try and find info on the marks and cannot find anything like them.   Looking for a date or date range that these were from.  Your help is greatly appreciated. Thanks for looking, Rick

[md1919]

search for de la hubaudiere, the La is a separate word.

[morewoodplease]

Hi Thanks for writing I did that but did not see anything with that mark.  I appreciate your response and looking.