Mid-Century "and symbol" silkscreen tie. Although the serif "Caslon" typeface was created by William Caslon quite long time ago (1692–1766!) it was revived again in 1966 with a more bold iteration - and has become yet another classic representation of typography of that time period.
The ampersand is often used when addressing a couple in writing: "Mr. & Mrs. Awesome" or "Bob and Tim", or "Dick and Jane" - perfect for weddings, engagements and any hitching ceremony.