His memory for faces, names and incidents and his concern for every individual leaves behind him an indelible impression.
Voters who do turn up to the polling stations today will have their thumb marked with indelible ink to prevent them voting more than once.
The advice suggests the surgeon in charge should draw an arrow with an indelible pen pointing to the area to be operated on.
Learning through hands-on experiences leaves a more indelible impression.
Police advice is to never leave your phone lying around, keep it out of view when you are not using it and mark your postcode on it with an indelible pen.
The point of entry can be marked with an impression from a thumbnail, a needle cap, or an indelible ink pen.
The years I spent at Eastwood Public School and Marsden High have left an indelible impression on me.
Tag them, or use an indelible pen to write the variety name directly on each tuber.
It would also be a good idea to use indelible ink, then the police would be able to spot the culprits.
The TTD management is making all efforts to make the event a success to leave an indelible impression on the visiting devotees.