half-plate film negative
<bdi><a href="https://en.wikipedia.org/wiki/en:Howard_Coster" class="extiw" title="w:en:Howard Coster"><span title="British photographer">Howard Coster</span></a>
</bdi>
1941
<a rel="nofollow" class="external free" href="https://www.npg.org.uk/collections/search/portrait/mw44799">https://www.npg.org.uk/collections/search/portrait/mw44799</a>