Watercolour of Acanthephippium bicolor by Anna Maria Walker (d 1852)
<bdi><a href="https://en.wikipedia.org/wiki/en:Anna_Maria_Walker" class="extiw" title="w:en:Anna Maria Walker"><span title="British botanist, botanical collector and scientific illustrator (1778-1852)">Anna Maria Walker</span></a>
</bdi>
1852
Collection of Royal Botanic Garden Edinburgh