Here are four nice glaze porcelain pieced for one price -- $20 shipped in the US:

Porcelain toll (unmarked Pittsburg), nice drippy glaze - couple tiny pings

Crude porcelain exchange (unmarked Pittsburg, glazed pinhole) very crude! couple tiny pings

Canadian style with the firing rest on the dome - small base chip & few flakes on the inner skirt

Very cool dry process spool and mounting bracket -- spool is marked R.T. & S. Co. (R. Thomas and Sons) -- tough early spool in good condition.