Joan Belmar’s “Reforma #1.” Acrylic, ink, gouache, oil and colored pencil on paper. From “Tierra del Fuego Series,” 2012. (Courtesy Joan Belmar and Charles Krause/Reporting Fine Art)

At first glance, it’s hard to understand why Joan Belmar hid his “America” series for 13 years. The collaged paintings are mostly abstract, and the childlike images etched into or drawn atop the paint don’t seem especially controversial. The simple outlines of feet and airplanes testify to travel, exile and rootlessness, and even the more ominous shapes — a gun, a jackboot — aren’t necessarily political. But the Chilean artist wasn’t a U.S. citizen when he made these works, and he decided it was better not to show them until he became one. (That happened in 2010.) After all, one of the paintings is titled as a tribute to Victor Jara, the singer-songwriter executed during Chile’s U.S.-backed 1973 coup.

The “America” paintings and a more recent series, “Tierra del Fuego,” are making their debut at Charles Krause/Reporting Fine Art. The newer work can be seen as more pointed, since it’s about the destruction of an indigenous people, the Selk’nam, who lived on the southern island divided between Chile and Argentina. Working from photographs taken in the 1920s, Belmar takes the dots and lines of the tribe’s body paint as visual motifs in paintings that (like the earlier ones) are mainly nonrepresentational. The artist boldly contrasts strong, clean black forms with areas of mottled, dripped tan and brown, evoking both the Selk’nam and the land where they once lived. Such pieces as “Reforma #1” are evocative but also powerful as sheer design.

The earlier paintings, made between 1999 and 2006, are messier and more thickly textured. Their many circular shapes foretell the tubular sculpture Belmar was to make before returning to painting for the “Tierra del Fuego” sequence. Although the “America” works draw on New York’s abstract expressionism, they also evoke Spanish painting, notably Joan Miro, for whom the artist is named. The references to Belmar’s new homeland can be skeptical — a dollar bill is collaged into “They Want Money?” — but also upbeat. “Trip to the Moon” expresses Belmar’s hopes for a new life with vivid blues and cloudlike swirls of white paper collaged into the paint. This vision of a new day seems too assured to be the work of a man who was looking anxiously over his shoulder.

Nikolai Getman

Another secret painter, Nikolai Getman spent decades privately documenting the eight years he was imprisoned in one of Stalin’s Siberian gulags. The Ukrainian artist was released in 1953 but didn’t exhibit the 50 canvases in “The Gulag Collection” until after the Soviet Union dissolved. Even then, Getman worried about the paintings’ longtime survival. So they were moved to the United States in 1997, seven years before Getman’s death. Fifteen of the pictures, all of which now belong to the Heritage Foundation, are currently on display at George Mason University’s Atrium Gallery.

Getman’s paintings depict emaciated corpses, piles of bones and above-ground burials in the permafrost. The artist’s style is expressionist, with bold brush strokes and simplified color schemes, but sufficiently representational to be classified as a dissident subset of Socialist Realism. The various ethnicities of the inmates, who include Japanese prisoners of war, are evident. The layouts of fences, roads and buildings are depicted precisely, and the release papers in a former prisoner’s hands in a painting titled “Rehabilitated” are genuine. They’re the artist’s own.

Many of Getman’s fellow prisoners experienced a different sort of release. The painter employs Christian imagery to depict death as transformation: “Magadan Hills (Golgotha)” places a cross amid a heap of skulls at a site where many perished in their captors’ quest for gold. Dedicated to Getman’s brother, who was executed in 1934, “In the NKVD’s Dungeon” shows a man in a narrow, stone-walled passage, flanked by two members of Stalin’s secret police; the doomed prisoner’s head is illuminated from behind, as though by a halo. Few of the pictures are spiritual, however. Most of them testify to everyday gulag existence — lice, cold, meager rations — with naked intensity.

‘Wax Works’

Encaustic, a mixture of pigment and beeswax, is an ancient medium that’s in vogue with a surprisingly large number of Washington painters. “Wax Works,” at Alexandria’s Athenaeum, groups the art of six local women who use the substance, although the show includes little encaustic painting. The small, starkly beautiful pieces in Jeanne Garant’s series “Second Chance” fix scraps of rusted metal in fields of wax. Mary Early applies beeswax to balsa wood forms, endowing simple shapes with complex textures. Julie Dzikie­wicz uses encaustic as the background for collages of fabric, photographs, buttons and miniature dresses, designed to evoke the history of the women’s suffrage movement.

All the artists build forms above — or seemingly below — the surface. Sondra N. Arkin layers wax and hand-tinted shellac, sometimes using a blowtorch to burn patterns into the piece before adding more veils of shellac; the effect suggests primal shapes glimpsed through water or mist. Ellyn Weiss’s paintings incorporate torn canvas and three-dimensional blossoms of wax and fabric. Joanne Kent constructs curls of untinted wax atop squares with pencil-drawn grids, or circles with slots at the center. The artist notes that these works are fragile, susceptible to either breaking or melting. But it’s the juxtaposition of geometric formats and lacy, organic wax that makes them so interesting.

‘Call Collect’

Sondra N. Arkin and Joan Belmar are both represented in “Call Collect,” a show of more than 100 local artists (a few of them also gallery proprietors or museum curators). This Hamiltonian Gallery exhibition consists of small pieces that can be mounted on a wall, but that doesn’t limit it to prints, drawings and photographs. Although there’s only one video — displayed on a petite MP3 player — sculptural work abounds and is often playful. Akemi Maegawa’s “Rice Ball” is a ceramic white mound with a black insert (seaweed? a pickled plum?). Tom Ashcraft has constructed a tiny fabric ship from blue flocking, while Margaret Boozer’s “Small Ravine” is a bit of geology, made from gray and white stoneware and placed in a box. Most of the works were sold at the opening event, a benefit for the exhibition space. But a few are still available, and the overall array provides a broad (if not systematic) overview of area artists.

Jenkins is a freelance writer.

Hidden Treasure

on view through Nov. 25 at Charles Krause/Reporting Fine Art, 1300 13th St. NW; 202-638-3612;

The Gulag Collection

on view through Nov. 9 at the Atrium Gallery, Mason Hall, George Mason University, 4400 University Dr., Fairfax; 703-993-4375;

Wax Works

on view through Nov. 11 at the Athenaeum, 201 Prince St., Alexandria; 703-548-0035; The six artists will discuss their work at the gallery at 3 p.m. Sunday.

Call Collect

on view through Nov. 9 at Hamiltonian Gallery, 1353 U St. NW, Suite 101; 202-332-1116;