Before the metric era, not only countries but even individual cities had their own local standards of length. Though separated by more than 200 years,  and  both enable the comparison of inches from different regions. Even when an instrument was not intended for systematic comparison it was useful to have more than one type of inch readily available.  carries Venetian and Milanese inches.
- Inventory No. 50889, "Surveying Instrument, by Tobias Volckmer, Munich?, 1612" [1924-0/part], Volckmer, Tobias
- Inventory No. 37142, "Local Length Comparison Scale, by Elliott Brothers, London, c.1870" [1978-5], Elliott Brothers
- Inventory No. 41866, "Sector, by Franciscus Fusarius, Cremona, 1638", Fusarius, Franciscus