Pack of 18 MW Polar Herring Kipper Snacks – Link 
Amazon has this case of 18 packs for $23.24. Checkout via Subscribe & Save for a total $19.75-$22.08 w/ free shipping.
Certified Kosher by Rabbi Ehrenberg – Berlin
- Pack of eighteen, 3.5-ounce cans (total of 63.54 ounces)
- Skinless, boneless, naturally hot-smoked (kippered) fillets of herring
- All natural: just herring and salt
- Harvested in North Sea and North Atlantic
- Produced in Germany