Hi sandymae,
It is always best, where possible, to get ID help before an item is put up for sale, especially if a piece may not be easy to get a definite ID.
Also, please note that the country-specific forums in here are for items known to belong to particular countries (or areas) and therefore all ID requests should be posted in the general Glass forum - except for items already offered for sale, which should be placed in the Market Place forum, which is where I shall move this thread to.
Hopefully somebody will be able to confirm an ID before it gets bought (I am fairly sure that the shape of the piece has appeared before in the GMB, but I have no idea when or where).