BETHLEHEM, Pa. -

Operators of the long-delayed National Museum of Industrial History in Bethlehem plan five open houses to showcase some of the museum's collection.

The open houses will be noon to 4 p.m. on five consecutive Sundays, beginning March 2, said Charles Marcon, chairman of the museum's board of directors.

In January, a Northampton County grand jury criticized the lack of progress on opening the museum, after 17 years and as much as $19 million in funds raised.

In response, museum officials then began considering having an open house at the museum to show the progress being made.

The objects won't be on display  in the museum near the Sands Casino, but at a warehouse just north of Bethlehem.

 Marcon could not provide an exact address, but said the open houses will be in the  "Roble Road facility" in Lehigh Valley Industrial Park, between Lehigh Valley International Aiport and Route 22 in Hanover Township, Lehigh County.

He promised more details about the open houses will be made public shortly.