WASHINGTON (AP) — The District of Columbia postmark is making a big comeback in time for its use on holiday mail, D.C. Delegate Eleanor Holmes Norton announced Tuesday.

The D.C. postmark all but disappeared after the 2001 anthrax attacks in Washington and the deaths of two district post office employees. Most outgoing D.C. mail was shifted to a Gaithersburg, Md., postal center, where it was processed. And it never moved back.

The Gaithersburg facility used the Maryland postmark on most mail, simply because the Maryland and D.C. mail was being mixed together.