Head of an angel on a tomb of Adelaide Drennan ...

This image presents a striking comparison between two photographs of an angel's head on Adelaide Drennan Westall's tombstone.

The top photograph showcases the angel under normal daylight conditions, revealing its intricate details as it is illuminated by natural light. The stone statue appears to be white or off-white with green moss growing in various patches. In contrast, the bottom photograph uses a 365 nm ultraviolet (UV-A) blacklight source to illuminate the angel's head.

Under UV-A illumination, the angel exhibits vibrant colors and markings that were not visible under normal lighting conditions. The stone has turned various shades of blue, red, and pink as well as numerous dark spots or splotches scattered throughout its surface. These effects are likely due to the stone's composition and any pigments used in its creation.

The image highlights how UV-A illumination can reveal hidden details on surfaces that may be invisible under regular lighting conditions. This technique is often employed by archaeologists, art historians, and conservators to study artifacts and artworks more closely. The image serves as a compelling example of the power of UV-A illumination in uncovering previously unseen aspects of historical objects.

Overall, this image effectively demonstrates how different light sources can alter our perception of objects and surfaces, providing valuable insights into their composition and history. – AI vision