I was called out to a new building estate in Harold Wood where the the customer lost the keys to his letter box.I arrived on site and after trying to pick the lock I decided after talking to the customer to drill the lock.To be honest for a letterbox it took some drilling, once it was open I told the customer I would get a new cylinder in for him I rang all my suppliers and emailed them pictures no one recognised the lock.After trawling though the net I saw one.I rang the company and sent them pictures and they emailed me to say it was one of there’s they informed me it was a very secure barrel with alot of feature as well as being endorsed by the police.I informed the customer of the price supplied and fitted and he gave the go ahead.It arrived yesterday and was fitted today the customers mail is now safe