This is a set of six vintage microscope slides showcasing spider parts, originally produced by N.B.S. These slides are perfect for collectors of scientific collectables, especially those interested in microscopes and microscopy. The quality of the slides is exceptional, and they are a great addition to any collection. The set is a perfect gift for science enthusiasts or collectors of vintage scientific items. The slides are in excellent condition, and their authenticity is guaranteed. I combine postage. Median sold price on ebay = £13.20.