Antique Winchester Full Brass Shotshell Casings No. 16 Gauge

Four very old Winchester No. 16 gauge brass casings. Cleaned ultrasonically, tarnished in a few places as shown. Appear to take large rifle size primers. Two have a crack in their base, see pics. I have more available if interested. Shipping at cost, likely a Canada Post extra small prepaid box at $22 least expensive.