In a forum about Old Atlanta at www.city-data.com..., someone posted this in a discussion about Kessler's Department Store:
Kessler's. Whitehall and Hunter. I bought my first permanent-press shirt there in the early '60s. Don't know what the Hell it was made of but it lasted over 15 years without a wrinkle! (although the last 5 years or so it had become a yard work shirt and was still comfortable.) Well worth the $2.75 it cost
If you haven't seen it already, there is a FB page you may enjoy. Over the last couple of years people have posted similar photos and discussions of department stores, including the store you mention.