Truncated Cone Flat Point as to the other, depends on the manufacturer. In Cowboy, most often Round Nose Flat Point, which in itself is a confusing description.
Looks like the tube is available, haven't heard from the OP - better condition than the one shown on the thread. no idea what postage will be - I have a mailing tube. PM me if interested.
Send me a mailing address, we can worry about the shipping after the fact. Have no use for it, will send it off in the morning, PO is closed now. My return address will be on the pkg. Rip