This Simplified Rietz Slide Rule is a great addition for collectors of engineering and surveying items. It comes with a W H Smith ruler and case, making it a complete package for those who appreciate vintage scientific collectables. The slide rule is specifically designed for engineering and surveying purposes, with sub-type of slide rules.

This item has been previously owned and is now available for purchase. Its overall condition has been carefully examined to ensure its quality and functionality. The case has been repaired one end with tape- see pic. Please refer to the images provided for a better understanding of the item's current state.