Save those bags, kid! You get stuff.

I wonder how many sticky, moldy bags people sent in.

This matchbook is easy to date, according to Wikipedia: "from May to July 1940, a 30-minute version was broadcast on Saturdays." It was all over the place before that - M-thu serials, then M-W-F, then off the air, then three days a week on another network, then 30 minutes on Saturdays, then back to 15 minutes every weekday.

A kid could hardly keep up.