A vintage slide rule from a series of Boots Chemist “Ringplan” Series Range.

This is a Boots Ringplan 10 inch long slide rule.

A full sized item, the rule remains in full working condition.

The clear perspex cursor is sound, clean and working well. The curser is spring restrained for a steady measure.

The rule features scales to both front and reverse - all as shown in my photographs.

A Clean, Genuine, Item,

NOTE: there is NO protective case with this item and is sold as per photographs.