How does it work?
First option would be something like this: nostr:npub12ctjk5lhxp6sks8x83gpk9sx3hvk5fz70uz4ze6uplkfs9lwjmsq2rc5ky #seedplate

Discussion
Each number column has 4 spaces.
You stamp the first 4 letters of each seed word in each column
There is enough space to stamp the first 4 letters of each seed word up to 24 words.
1 - KITC (kitchen)
2 - DIVI (divide)
Etc…
You only need the first 4 letters of each seed word to recover a wallet :)
Has this been tested in fire etc? Seems so small/hard to read if it was affected