Vintage Original Geometric Abstract Oil Pastel on Paper Mid Century Modern

Vintage original geometric abstract oil pastel on paper featuring a striking hard-edge modernist composition in muted earth tones. Unframed, approximately 11.5 x 8.5 inches. Signed on the reverse (artist unidentified). Displays well with Mid-Century Modern, Bauhaus, and minimalist décor. Good vintage condition with light edge wear and minor corner creasing consistent with age. Please review photos for details.