Hello Newf,
The coiled brass foil cases will be for the Black Powder Express rather than Nitro Express. These are scarcer than the later drawn brass cases and will command a higher price from cartridge collectors than the later drawn brass rounds. Try looking for a Cartridge Collectors Website. You'll probably find a fellow Canuck who collects them or someone with a rifle who is in need of that empty brass. Prices I can't help you with but each coiled case round must be worth between 10 and 20 bucks each, perhaps more. Good luck with your sale.
Harry
