Distributor I.D. ?

[johnr]

    I have got a very lightly used dual point distributor with the mechanical tach drive. It is in impeccable good shape with not even any wear signs on the gray body. The tag shows me CHRYSLER 2444363 prestolite 1BS-4011-Cs  7W which is also in extremely wonderful shape. Can some one help me to identify this distributor or point me in a direction to do so ?
I am pretty sure this one is a rare bird.

[anlauto]

1964 413 -4bbl, auto or 4spd, C Body, without the Ram horn induction.

[johnr]

Thank-you. It is a nice specimen.