Is this an Antique Dining Room Set ?

by Kate
(SE, PA, USA)

This was my grandmothers set and I would like to find out some information. Approximate age and value would be best. I cannot locate a brand name anywhere - only the table is stamped on the bottom 'Oval Table - Cherry'. Any help is greatly appreciated. I find it odd that the head chair is slightly larger than the rest and is the only chair with arms.

5 armless chairs & 1 armed chair

Server
60"L x 19.5"W x 31"H

Table
60"L (72" with leaf) x 40"W x 29.5"H

China Cabinet
60"L x 17"W x 77"H


Thanks
Kate