Lantern slide showing Sligo Abbey, Co. Sligo. Originally labelled 'S 78', the slide is titled Sligo Abbey. Two women and a child are seen standing beside the wall.
Lantern slide showing window and altar at Sligo Abbey, Co. Sligo. Originally labelled 'S 82', the slide is titled Sligo Abb E Window and altar. Lew 10x15 film neg is printed on the side. The name Mason Dublin is printed on the mount of the slide.
Lantern Slide of the small capital at Kilteel Church, Co. Kildare. Originally labelled '29:9' and 'K2 99' with the titles 'KILTEEL: Small Capital Leask' and 'Thomas H. Mason, 5-6 Dame St., Dublin, C.I.'. This photograph was taken by H.G. Leask.