@DCLane , I hope your son is happy with them, I have a collection of foreign notes and old English and Manx notes, no value (I dont think) but nice to keep.
@Globalti , nice thing to do
When I first worked in a bank over 20 years ago, we used to have a coin dealer in the UK who would send us a quality street tin full of Manx coins for repatriation in the post, one year however that stopped when the tin contents couldn't be identified by the post X ray...... the bomb disposal folks took it away and blew it up!!!!!