Home / United States / World War II / Posters / WWII Poster: “If It Helps Production Use Your Telephone…” WWII Poster: “If It Helps Production Use Your Telephone…”$150.00 Approximately 12 inches by 15-3/4 inches. Very good condition, without folds or tears. WWII Poster: "If It Helps Production Use Your Telephone..." quantity Add to cart Item Number: 77119 Category: Posters