This is another creative word lead advert which gives someone an alternative to saving contacts on their phone if they ever lost them. It is effective as your contacts on your phone define the usage of it, people use their phone to talk to one other. Even if it was socially or for business, your phone is important and losing your contact can mean in losing someone for good. By not having an alternative way to contact them.
The formal, angular style incorporating Celtic symbols deployed by architect, designer and watercolourist Charles Rennie Mackintosh (1868-1928) defined the Glasgow school, along with the Macdonald sisters and Herbert McNair. Together, they were known as The Four.