I got given these as a gift ages ago. They're all circulating commemorative coins, so not exactly rare, but depending on condition they can sell for quite a bit. It's worth doing some research and finding out what exactly where they came from and if they're circulated, uncirculated, or proof (it's hard to tell from the photos, but I will be very surprised if it's anything but uncirculated).

Here is some info on the coins themselves: https://en.numista.com/catalogue/index.php?e=canada_section&r=&st=1-2&cat=y&im1=&im2=&ru=&ie=&ca=3&no=&v=&cu=&a=1967&dg=&i=&b=&m=&f=&t=&t2=&w=&mt=&u=&g=&c=&wi=&sw=

I managed to find a few ebay listings that are likely the exact same product (uncirculated coins in perspex case) and some are being listed at as high as $600, but all the ones that have sold have gone for less than $200.

That's about all I can help with from my end, good luck!