1918–1945
The busiest years of American cast iron cookware and the source of most of what's listed today. Griswold introduced its large block logo around 1920 and switched to the small block logo around 1939; Wagner introduced its stylized Wagner Ware Sidney -O- logo around 1922, with heat-ring pans carrying catalog numbers through the mid-1930s before smooth bottoms took over; Favorite Stove & Range of Piqua, Ohio, made its Piqua Ware cookware from about 1916 until its tooling was sold in 1935; and Lodge's unmarked pans moved from a single-notch to a three-notch heat ring around the 1940s. Cooking surfaces from the major makers were still milled smooth. Supply is healthy, so common skillets sell at everyday prices — roughly $50–150 for most Wagner and small-logo Griswold sizes, more for large-logo Griswold No. 8 and No. 10 pans. The logo change is the main price divider within a maker: the same Griswold No. 8 pattern typically lists for about twice as much with the large block logo as with the small one.
25 hand-curated reference pages from 1918–1945.

typical $90–$220
c. 1920–1940

typical $180–$400
c. 1920–1940

typical $110–$260
c. 1920–1957

typical $30–$75
c. 1930s–1950s

typical $60–$160
Late 1800s–1950s (many variations)

typical $60–$200
c. 1920–1957

typical $120–$300
Early 1900s–1930s (approx.)

typical $70–$150
c. 1922–1959

typical $40–$100
c. 1922–1959

typical $50–$120
c. 1922–1959

typical $90–$260
c. 1920s–1959

typical $20–$60
c. 1920s–1960s

typical $150–$320
c. 1920s–1940s

typical $50–$130
c. 1930s–1950s

typical $35–$90
c. 1920s–1950s

typical $100–$240
c. 1910s–1940s

typical $90–$250
c. 1916–1935

typical $70–$160
c. 1916–1935

typical $80–$180
c. 1916–1935

typical $110–$280
c. 1916–1935
typical $70–$150
c. 1916–1935

typical $60–$150
Early 1900s–1940s (marked)

typical $80–$180
Early 1900s–1940s (marked)

typical $80–$180
Early–mid 1900s (approx.)
typical $60–$130
Early 1900s–1940s (approx.)