Cast-Iron Trivet Collection

Here is the start to a wonderful collection I have loved my whole life, and my mother so graciously gave to me when she moved into smaller living space.

I hope you'll enjoy these pieces of history as much as I do.

Here is a nice painted gold Good Luck Star trivet, measuring 7 inches x 4 1/4 inches, with three legs 3/4 inches tall.

On the underside, in the area circled in yellow, is the number "266." What does this mean?