shellback, you're right. It's the way Emerald Books and Stamps start all their listings. I think it's so buyers can get up-front seller ID.
There are other sellers who use this abbreviation. It's because they are using EBS's original listing to save time. They probably don't know what it means but they keep it anyway. Here's what one seller from the UK said to me:
Quote:When add item to
ebay if find similar you can follow similar item save time I'm just forget delet EBS
It's similar to how junk DNA ends up in our genome.