Well, this is cool. I was looking for place to get serial number information and found out that Free-Westinghouse was eventually part of New Home and you can check dates there! Also found out that Free was the founder's last name. Also that the brand was sold to a Japanese company in 1954, so yours "made in America" would be earlier than that.
Here's a chart though, goes up to 1930
https://ismacs.net/newhome/manufacture_dates.html
If that doesn't work I thought maybe the cabinet/container might give us some date clues.