Though this near matching pair of sconces is unmarked, they were most certainly manufactured by the well-known Dutch company Philips. As similar models in frosted glass and (perforated) metal by the same manufacturer have been documented.
Dimensions: height 12.99 in., width 5.51 in., depth 5.71 inches (33 cm x 14 cm x 14.5 cm).
Materials and techniques: frosted glass, painted metal. Condition: Good, some wear to the black paint; glass in perfect condition.