This is a classic imported briar estate pipe from the mid-20th century (likely 1940s–1960s). "Montcalm" is a brand associated with imported briar pipes, often produced in Saint-Claude, France—the historic center of briar pipe manufacturing. It aligns with French export lines stamped to highlight "imported briar" for marketing post WWII, when Mediterranean-sourced briar (heather root) became prized over wartime substitutes. The pipe is a rustic, textured (likely sandblasted or rusticated) pot shape, with a dark reddish-brown finish, a straight stem. Primary marking "MONTCALM" (embossed or stamped on shank; Material - Bowl/Stummel Primary wood; Mediterranean briar; Stem Mouthpiece Vulcanite or hard rubber; Shape Overall design is billiard/pot hybrid. Finish Surface treatment Rusticated (deep, pebble like etching in reddish brown stain; Filter Internal design: None / See photos for more description and the condition. Approximate dimensions and size measurements: Overall Length 14.5 cm 5.7 inches From stem tip to bowl. Bowl Height 5.0 cm 2.0 inches from rim to base; standard "group 3" size for moderate smoke volume Bowl Diameter (Outer) 3.8 cm 1.5 inches Wide pot-style rim; rustication adds subtle texture. Chamber Diameter: (Inner) 1.9 cm 0.75 inches At widest point; suitable for 9mm tobacco load Chamber Depth: 3.8 cm 1.5 inches Stem Length 6.0 cm 2.4 inches Weight 40–50 g 1.4–1.8 oz Origin and History: France Saint-Claude region. The global hub for briar pipes since the 1850s.