Just for fun I ordered the smaller 12mm 'Edison' ones that they were selling alongside the big circled ones you posted Adeline...when they arrive I'll let you know what they are like.
12-16mm Edison pearl rejects are on ebay, so it claims.
You think these are castoffs of the real thing?
I frankly don't fancy them.
http://www.ebay.com/itm/Big-A-12-16...645?pt=LH_DefaultDomain_0&hash=item5d3299821d