It is written using the Latin script, but includes some unusual letters.

Right, and that's an unusual letter with which to start a last name.

A small room is dedicated to a collection of unusual letters and theories received by the observatory circa 1915-1935.

Suspicion first surfaced at the governor's office after his secretary became ill and then remembered an unusual letter she had opened, postmarked Sept. 25.

In the first category was an unusual letter from the White House budget office.

Carol looked up from her unusual letters.

So says the Federal Reserve in an unusual letter sent to all banks last week and released to the public this week.

The prosecutors were so concerned that they wrote an unusual letter to a Police Department official asking him to investigate.

"I had rather an unusual letter from a firm of solicitors."

Some tips on how to deal with any unusual letters or packages.