The first name of Danny Ince, Mrs. William Ince, was incorrect in yesterday's story about the Washington Antique Show at the Shoreham Hotel.

"I've got to have the birdcage," said Maurice Tobin. The cage, made like a Gothic church, was circa 1850. "When the bird lands on the perch," said Tobin, "the bell rings in the belfry. I've got to have it." Tobin headed in the direction of Hastings House Antiques to buy the birdcage. About that time Joan Tobin came from another direction. When told her husband was about to buy a birdcage, she headed hastily after him.

There were a number of scenes like this last night at the preview dinner of the Washington Antique Show as some 700 old-line Washingtonians came to sip cocktails at the Shoreham Hotel while deciding on antique purchases.

Jean and William Ince (she was one of the volunteers who organized the show) were lured by a $2,800 late 18th-century desk chest. "I would certainly like to get each of our children a good piece of furniture to start housekeeping with," said Jean Ince. "But they'd probably rather have plexiglass."

William Blair, a Bethesda antique dealer, rejoiced in the sale "in five figures" of a handsome dining table. But so far no one had paid the $100,000 for William Merritt Chase's portrait in Frank Schwartz's booth.

At the dinner, to the music of electronically magnified lutes, people dined on filet mignon, asparagus and orange sherbet. So that the dealers would not be lonesome, dinner was at two seatings, 7:30 and 8:30. Last year, everyone marched out to dinner at the same time, and the dealers, left at their booths, organized a petition.

The Washington Antique Show, which continues through Sunday, is the poshest of all the shows in the Washington area. This year Mrs. Warren Burger is honorary chairman with Mrs. Gene Perry Bond and Mrs. James M. Johnston III as the working co-chairman. Mrs. Malcolm Matheson III and Mrs. Charles E. Mochwart were co-chairmen of last night's dinner.

The 44 dealers come from all over the country, and often so do the buyers, though the show is a favorite of Washington's permanent residents.

The event benefits the Thrift Shop charities: the Child Health Center, Children's Hospital, the Columbia Hospital for Women, the Hospital for Sick Children and St. John's Child Development Center.

The show is open tomorrow through Saturday from noon to 9:30 p.m. and Sunday from noon to 6 p.m.