Apple Keyboard - United Kingdom QWERTY layout (MC184B). Note: It is different from <a href="//commons.wikimedia.org/wiki/File:KB_United_Kingdom.svg" title="File:KB United Kingdom.svg">File:KB United Kingdom.svg</a>. The # sign is reached by Option+3 (not printed on the keytop) and the € sign is present and is typed with Shift + Option + 2.
<a href="//commons.wikimedia.org/wiki/User:Yes0song" title="User:Yes0song">Yes0song</a>
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<span class="int-own-work" lang="en">Own work</span>