Welcome to CCF.
The District Seal should actually be black, not green. I would guess that since the note is approximately 30 years old, and the lifespan of $10 notes is about six years, that this note sat idle for some time. I suspect the discoloration of the District Seal can be attributed to chemical or environmental damage. This is how the note should look.

The District Seal should actually be black, not green. I would guess that since the note is approximately 30 years old, and the lifespan of $10 notes is about six years, that this note sat idle for some time. I suspect the discoloration of the District Seal can be attributed to chemical or environmental damage. This is how the note should look.





























