Antique Small Folding Extendable Table

My camera is not working, but this is very similar to a table I have. Please tell me any info you can about this kind of table.
I do not even know what to name it or really how to describe it, but mine is a small skinny table and it has a wire latch pull thing (on the side where the tag is in pic) which you pull to open the table where the foldable extension is held. It is all pretty automatic, and just folds into place.
I know it is an antique because it was my grandmother's. She passed away and I have had it for about 20 years. I just want to know what to say when people ask me about it. Any info would be much appreciated.