That is a very good question!
If I were to make a new till for an old chest, I’d sign and date it with a steel
nib pen and indelible ink before applying any finish.
Replacement or additional tools? I don’t have an answer.
Since one finds old tools with multiple owner’s name stamps, perhaps adding
one’s own name stamp is just carrying on a tradition. Maybe add a year
identifier with number stamps.
Who wonders who made the big chest he bought sans tills.