Cast Iron Flying White Pig piggy bank

I bought this today at an antique show and wanted to find some info on it. I am not sure if it's antique or a reproduction. I found fake "vintage" ones online but they were all smaller and weighed less. Mine weighs in at over 17 lbs and is 13 inches long, 7 inches wide and 9 inches high. I paid $30 for it and even the smaller "Vintage" ones go for about that so I don't feel cheated either way, just want to find out if it's authentic and what it's time period, etc might be if it is. If it's a reproduction that's fine too as I love it either way. Any help is appreciated