Box of Blank Microscope Slides

Brown wood box with no lid containing 22 blank glass microscope slides of different sizes and colours. Slides held vertically by pair of comb-like holders. Box also includes six glass rings for creating specimen cells, four rectangular glass sheets in different colours, one cream block with a rectangular slot, one wooden case with glass windows containing ten glass discs of different sizes and colours. One small piece of wood with two screws has broken off from comb-like holder.