77 Ock Street, Abingdon, Oxfordshire (formerly Berkshire), seen from the south. The first floor façade is hung with <a href="https://en.wikipedia.org/wiki/mathematical_tile" class="extiw" title="w:mathematical tile">mathematical tiles</a>.
<a href="//commons.wikimedia.org/wiki/User:Motacilla" title="User:Motacilla">Motacilla</a>
CC BY-SA 4.0
<span class="int-own-work" lang="en">Own work</span>