Lot of 6 Science and Mathematics themed neckties featuring unique, academic designs. This collection includes various motifs such as Albert Einstein portraits, E=mc^2 formulas, Pi calculation digits, calculus equations, and complex geometry diagrams. Museum Artifacts. Wild Ties. Steven Harris. Brands in this lot include Wild Ties, Museum Artifacts, and Steven Harris. Materials range from high-quality silk (Museum Artifacts) to microfiber and polyester. These ties are perfect for teachers, professors, engineer, or anyone with a passion for STEM fields. Features include: - Vibrant colors: Red, Blue, Black, White, and Grey. - Themes: Relativity, Calculus, Trigonometry, and Programming. - Condition: Good pre-owned condition with no visible stains or snags.