20" (51 cm.) Bisque socket head with slender angular features depicting an adult lady, aquiline nose, painted grey/blue eyes with heavily modeled lids and well-sculpted eye sockets, thickly fringed lashes, brushstroked brows, accented nostrils, closed mouth with solemn expression, shaded lips, pierced ears, brunette human hair wig, composition and wooden fully jointed lady body with defined bosom, tiny waist and accentuated derriere, antique dress, coat, bonnet, undergarments and leather shoes. Condition: generally excellent, few typical wig pulls at rim. Comments: Simon and Halbig, circa 1910, their 152 model of adult lady, the rarest of the three art character models presented by that firm, and, according to research by German scholar Marianne Cieslik, possibly a portrait model of Rosa Luxemburg (1870-1919), the Polish-born German intellectual and social reformer whose short life was spent advocating the rights of the common man and woman, and who was considered a heroine in her time. Value Points: the great rarity of the model with intriguing historical background is enhanced by her exceptional artistry of sculpting and finest quality of bisque, soft matte complexion, and painting of features, original lady body with original finish.