Which preposition to use with postals

from Occurrences 5%

"Though what he expects me to do with a hunting knife is more than I can guess," laughed Bob. CHAPTER V A REGULAR CROSS-PATCH "Be sure you send me a postal from Washington.

for Occurrences 1%

He returned with a picture postal for Mrs. Randolph Rover and two advertising circulars for her husband.

into Occurrences 1%

These we usually found shut up, being opened only on mail-days, and in such cases nothing could be done but to slip a protesting postal into the little slit in the wall apparently intended for letters.

to Occurrences 1%

A postal to us will place it in your hands HURST & CO., Publishers, 395, 397, 399 Broadway, New York.

Which preposition to use with  postals