Does the flea market vendor's have old furniture, old antique items like cast iron dishes, metal signs from back in day off building?

Yes

It varies from week to week but they have stuff like you are looking for most of the time

THANK YOU MUCH We plan on visiting there soon one wkend!! 👍

They do depending on the vendors. It's different stuff every week

I have seen old furniture and some cast iron pans there. Not many metal signs though.