Walnuts alone
After using furniture pens.
I went and looked, the couch didn't do it, the client just wanted me to look and see if it's something our equipment could've done.
I rubbed some nuts on it and used wood markers for furniture. Told him I'm sorry, I don't believe we caused it.
Probably needs a little sanding wood filler and refinishing.
But the whole floor could use that.
He thanked me for looking and said it was more his wife who thought we did it.
We chatted for ten more minutes and got off the phone.