Mystery chairs

Purchased privately in 2008, I have four of these chairs. Two of them are natural with a thin varnish, and two are stained green with the same clear thin varnish. I was told by the previous owner that they had been acquired decades before by her previous partner after being used as props in a window display at a department store in NYC. All four are marked with the same crowned "harold" signature. I have not been able to figure out as of yet where these are from or whom they were made by.