At the Bethesda Art Gallery on Norfolk Avenue, owner Betty Minor Duffy has opened her annual holiday show, which includes lower priced prints she collects throughout the year. Particularly reasonable are some of Albert Baker's delicately shaded rural scenes at $30 to $65. Some etchings of New York by Harry Shakler are another attractive gift possibility at $25 and $35. On the other hand, for shoppers who want to indulge, there are two first class Thomas Hart Benton works at much higher figures.

Few can match the setting of the Indian Queen Arts and the Crafts Co-op, located in an 18th century tavern on alternate Rte. 1 in Bladensburg. cAmong the Co-op's many extremely reasonable items are stocking stuffers like mouse bookmarks for 35 cents and napkin rings for 50 cents. In addition to toys, jewelry, batiks, handwoven items and pottery, the Co-op also has handmade ornaments and wreaths for sale. For information on hours call 699-1776.

Members of the Laurel Art Guild have an exhibit of watercolors, prints and paintings on sale through Dec. 27 in the new Montpelier Cultural Arts Center. On Dec. 15 and 16, from 10 a.m. to 5 p.m., the center's resident artists will hold a special holiday sale and show, giving the public a chance to watch art being created as well as to buy it.