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Artemis Fine Arts and Arte Primitivo have joined forces for their second collaborative auction, presenting a carefully curated two-day sale that celebrates a diverse array of global artistic traditions. Taking place from May 20–21, 2026, the event brings together decades of expertise and deep collector relationships from both galleries to guarantee the quality and provenance of every lot. In this image: Fossilized Sabertooth Skull in Matrix. Estimate: $11,000 - $16,000.

Elise Nees von Esenbeck German Still Life, Oil on Canvas, Breslau. Elise Nees von Esenbeck (German, 1842-1921). Untitled still life, oil on canvas, late 19th to early 20th century. Inscribed "E. Nees v. Essenbeck Breslau, Garvestrasse" on tag depicted in the painting. A striking still life by Elise Nees von Esenbeck reveals both technical mastery and deep botanical sensitivity, shaped by her exposure to the gardens of Breslau, Germany, once overseen by her grandfather. At the center, a large woven basket brims with clusters of grapes, its handle adorned with a tag inscribed “E. Nees v. Esenbeck, Breslau, Garvestrasse.” Estimate: $3,000 - $6,000.

Cretaceous Hadrosaur Dinosaur Footprint Cast. North America, Western Interior Basin, Late Cretaceous, Campanian Stage, ca. 75 to 83 million years ago. A natural cast of a hadrosaur footprint, lifted from the ceiling of a Cretaceous coal mine and bearing the trace of a single moment some seventy-five million years deep. The duck-billed maker, likely Prosaurolophus or a closely related hadrosaurine, pressed its broad padded sole into the saturated peat of a Western Interior swamp during the Campanian Stage of the Late Cretaceous. Estimate: $2,000 - $3,000.

Henry Moore "Reclining Mother and Child I: Profile," 1979. Henry Moore (British, 1898-1986). "Reclining Mother and Child I: Profile" etching and drypoint in black on Arches paper, 1979. Edition 3 of 50. Hand-signed and numbered in pencil below plate mark. Printer: Michael Rand, London. Publisher: Raymond Spencer Company Ltd for The Henry Moore Foundation, Much Hadham. Estimate: $2,000 - $3,000.

Syro-Hittite Horse Vessel. Ancient Near East. The Levant. Ca. 1200 - 500 BCE. Pottery horse form vessel depicted standing on four short legs and having a small circular opening near the center of his back, and a spout form snout. Incised and stippled collar around his neck, and an incised bridle/halter fastened on his head, raised mane and tail. Estimate: $600 - $900.

Civil War Union Army Standard Issue Knapsack, Inspector Marked. United States, northeastern US, Union Army, Civil War era, ca. 1864 CE. Great example of the standard issue double bag knapsack constructed of painted canvas and retaining all original buckles and straps. Estimate: $1,200 - $1,800.

Three Chinese Ming Dynasty Pottery Attendant Figures. East Asia, China, Ming Dynasty, ca. 1368 to 1644 CE. A finely modeled group of three Ming dynasty pottery attendant figures, each standing upright on a square base and rendered with remarkable attention to costume, posture, and expression. Estimate: $1,500 - $2,500.

Two Prehistoric Fossilized Megalodon Shark Teeth. United States, North Carolina, Middle Miocene to end of Pliocene epochs, ca. 23 to 2.6 million years ago. A pair of fossilized megalodon shark teeth in charcoal and blue-gray tones. The teeth display broad triangular crowns with visible serrations and robust roots, characteristic of this apex prehistoric predator. Estimate: $1,100 - $1,650.

Amazonian Feathered Headdress, ex-Eugene Lions. Amazon. Mid 20th century. Feathered headdress composed of blue and gold macaw feathers, with a lower row of yellow and green macaw tips and a lower border of dark brown duck feathers, with a multi-string tie at both ends. A few minor imperfections, otherwise overall exc. cond. A very nice example. Domestic shipping only. No foreign shipping. Size: 7.75" H x 40" L Estimate: $1,000 - $1,500.

Yaacov Agam "New Year's Air" Nouvelle #2 Series (Lenticular) . Yaacov Agam (Israeli, b. 1928). "New Year's Air" from "Nouvelle #2" Series, agamograph (also known as a lenticular), n.d. Ed. 20 of 99. Signed in green ink at lower right. Numbered in green ink at lower left. Yaacov Agam's "New Year's Air" from his series "Nouvelle #2" displays the Israeli artist's mastery of optical/kinetic art. Known as a Lenticular or an Agamograph, this artform uses optical illusion to create changes when the viewer's observes if from different angles. Estimate: $1,000 - $1,500.