My best friend and I bought up a bunch of them, back around 2005/2006 and got them all at T.J.Maxx. They were cheaper there than what they cost in Paris.
Just wondering if Lamarthe is related to Didier Lamarthe? I own a very pretty pink vintage pebbled leather purse by Didier Lamarthe which I hunted down in Tokyo. Its quality is not inferior to top brands such as Chanel, Loewe, Celine, Chloe etc. Intrigued by its design, I paid around 20,000 yen (app. USD 250) for it. I feel that the purse is worth that price. It will be sad if Lamarthe is Didier Lamarthe and it is not keeping up!
My pink purse is of the same design as this purple one
(the second bag from the top):
http://aoyama-goldenbears.com/bag.html