The Bethlehem House Contemporary Art Gallery’s Holiday Show, spanning from October 18, 2019, to January 11, 2020, highlighted the artistry of InVision Festival artist Matthew Blum. His ambrotypes, with their spectral elegance, framed historic landmarks in a dialogue between past and present. Blum’s pieces offered a unique view through the ambrotype process, standing out in the collection as profound meditations on time and architecture.