I know very little about this table. When my grandmother passed away I took this piece from her house. I don't know anything about it. I just learned today that it opens up. Unfortunately I don't have the leaves for the table. the surface that is up when the table is closed is well scratched. It has a label that looks like it says:
Water Lesle Slide
B. Walter & Company
There is also a label inside that has says Patent No: 2153.262.