Final answer:
The first mass-produced molded fiberglass-reinforced plastic chair was designed by Charles and Ray Eames, not Marcel Breuer, highlighting the importance of correctly attributing design innovations in the history of furniture design.
Step-by-step explanation:
The first molded fiberglass-reinforced plastic chair to be mass-produced was not designed by Marcel Breuer, a common misconception. The credit actually goes to Charles and Ray Eames for their work in the 1950s. Their innovative design approach combined functionality with a modern aesthetic, using new materials and manufacturing processes of the era. Although Breuer was influential in the use of tubular steel in furniture design, as evident from his work on the Bauhaus chair and the cantilevered Marcel Breuer Chair, he did not venture into fiberglass chair designs. It's essential to distinguish between the various contributions of these designers to understand the evolution of furniture design accurately.