Buffet with murphy table

This was posted before when I didn't even know the name of it. I have since learned it is called a Murphy table as in the murphy bed. The 4th picture is not my item but it is what they look like when opened up to seat up to 10 people. This belonged to my grandmother who was born in 1883 but don't know what year she acquired it. does anyone know any history about it. When it was popular, etc. I would appreciate any information I can get. Thank you