Columbus Hollow Ware No. 12 Skillet

The No. 12 is the largest skillet Columbus Hollow Ware ever produced — and with its documentation, the SSC five-piece matched set is complete. It also delivers the final data point in the "S" mark investigation that began when the No. 8 was first photographed: present on No. 8, absent on No. 9, present on No. 10, absent on No. 11, present on No. 12. Even sizes carry it. Odd sizes don't. That pattern — confirmed across five consecutive pieces from a single provenance — is now in the published collector record for the first time