Greek Clay Plate

Any infomation is appreciated !

Marked "Made In Greece"  MK AOHNA

Only reference I have found was one that was sold on ebay. The link says that they believe it to be a 1920's museum reproduction. The one being sold was very similair but the image is different.

Any one know any info on MK AOHNA or how to tell the age of this piece??

Here is the one on ebay :

http://www.ebay.com/itm/MK-AOHNA-GREECE-GREEK-Terracotta-POTTERY-URN-BOWL-and-PLATE-W-HANDLES-GEELONG-/370578342723?nma=true&si=i5vaM0leubEbOgrBMnRseV3u8Xg%3D&orig_cvip=true&rt=nc&_trksid=p2047675.l2557