Owen Harvey's work is always born out of a deep interest in people, spending time with those he documents to discover facets of identity and belonging. In celebration of the infamous pearly kings and queens 150th anniversary, Owen has brought to life a unique London story of shimmering buttons and heritage for The Guardian.

It's a philanthropic community that spans generations and postcodes. Meeting octogenarians in their homes and newly crowned pearly princesses, the age gap of Owen's subjects was 96 years. The resulting photography is proud but tender, with a striking mix of studio and location work. As ever Owen conveys the heart of his subjects, delivering a unique story about a unique grassroots movement with conviction.