vintage ivory white ironstone china teapot, big old farmhouse kitchen tea pot

Heavy vintage china tea pot, plain ivory white color - maybe Porcelier? Hall? This isn't marked at all that I could find.

It's a two quart size, big! Measures about 11 1/2" across handle to tip of spout, stands 6 1/2" tall. Condition is very good, no chips, cracks or staining.