Whiz Bang .22

I picked up this sealed full (contence unknown) box of Whiz Bang .22 LR at a antique shop today. the guy wanted $85.00 for it but gave it to me for $75.00. I probably paid to much for it but had to have it. The box is in great shape. Anyone know when it was manufactured?
Thanks,
Kevin

Probably 1940-50 from reading the Don Blythe book on Cdn 22RFs.

Your box has probably a date code inside. Go have a look at 22box-id.com. In the Canadian section, you can find a decoding table of C-I-L boxes.

Looked at the .22 box ID page and it said that this box would not have a product code. Thinking some where in the 1930s.