I have a 1961 Crane Pacific toilet with ceramic tank. As you can see from this photo the flapper is seating directly on the ceramic at the base of the tank. There seems to be parts missing, but I cannot find the correct replacement parts. The tank is filled by an old school brass ballcock valve and the overflow "tube" is molded into the tank itself (upper right side of photo). So two part question. 1. Anyone know what the original seat mechanism would have been. If an original part replacement is not available, what would you install at the seat to seal this tank? Here is the flapper
Here is the ceramic seat
Here is the ceramic seat