Take a look at that tag again. Are you sure it's spelled with an 'h' at the end? Or....could it be an early 1900s chair made by the Parkersburg Chair Co of Parkersburg, WV?
http://ftp.rootsweb.com/pub/usgenweb/wv/wood/bios/
w3000001.txt
Not much else to know about it, really.