You're correct on the Tool Head.....

but I'm still curious about the Loader..

It has a Standard Star Base, #11, I'm not certain about the #14 Shell Plate Thrust Nut,
I have a Phelps, I'll go look, It's a Phelps Thrust Nut........
I'm wondering why it has a Star Style Base Plate..

A Phelps Base is a lot thicker...

I believe 1 Shellplate is a Star and the other is a Phelps...

My nickels worth.........