Pulsing veins, shiny flanks, rippling muscles--and thoroughbreds all. To celebrate the 30th running of the International at Laurel Race Course, the Maryland Historical Society is offering a show of 24 oils and four bronzes depicting the winners. The exhibit, opening Saturday, continues through the race November 7 and on to November 20, and should have unlimited appeal to horse lovers and horserace lovers. Six canvases by Richard Stone Reeves include one of Kelso (owned by Mrs. Richard duPont), "Horse of the Year" for four consecutive years; and another of Dahlia, (owned by Nelson Bunker Hunt of silver- market fame), one of the few fillies ever to win. A series of caricatures by "Peb" (Pierre Bellocq), a French artist familiar to Racing Form readers; a mannequin of jockey Eddie Arcaro, and the International's silver globe trophy by Tiffany's also pay homage to The Race. Large photos catch the celebrity action at the finish line, including Liz Taylor and John Warner, Martha Mitchell in a mink, Henry Kissinger, Hunt, Ike, Ed Sullivan, Walter Cronkite, Motown mogul Berry Gordy and the real star of Laurel's show, Race Course board chairman John Schapiro. As the Ascot crowd sang in "My Fair Lady," "everyone who should be here is here." LAUREL INTERNATIONAL'S 30th ANNIVERSARY -- At the Maryland Historical Society, 201 West Monument Street, Baltimore.

Take the Baltimore-Washington Parkway to Paca Street, right on Mulberry Street, left on Howard Street to a public parking lot behind the bus station.