Ff mailing

FF mailing stands for "Free Frank" mailing, which was a system used in the United States during the 18th and 19th centuries. It allowed government officials, including postal workers, to send mail without paying postage.

Here's how it worked:

1. A government official, such as a postmaster or a judge, would write a letter or send a package to someone.
2. The official would affix a special stamp or mark to the letter or package, known as a "free frank."
3. The free frank was a signature or a stamp that indicated that the official was sending the mail without paying postage.
4. The recipient of the mail would not have to pay postage to receive the letter or package.

FF mailing was used for official government business, as well as for personal correspondence. It was a convenient way for government officials to send mail without having to pay for postage, which was often expensive and difficult to obtain.

FF mailing was phased out in the mid-19th century, as the United States Postal Service began to require postage for all mail. Today, the term "free frank" is mostly used to refer to the historical practice of sending mail without paying postage, rather than the actual stamp or mark used to indicate this.