Where to buy .32 cal Moore teat fire cartridge

I have a Moore .32 cal teat fire revolver and would like to buy a cartridge to display with it. I know they made both round and flat .32 cal teat fire cartridges. Does anyone know where I can buy one? This seems to be very unpopular, and I have only seen a select few sold listings. Thanks so much for the help!

Check out Ward’s auction.

Look here:
http://www.oldammo.com/Patent.htm