How they used to do it. No embedded chip or polyester lanyard, I can guarantee you. But a B & W mug shot and payroll number. 2.25 x 1.5.
Family of 5 Cement Ducks 1936
Emil Reisman Modernist Ceramic Sculpture
Modernist Ceramic Sculpture of a Fruit by Emil Reisman
Cement Faux-Bois Sundial & Planter 1936