This is a very unusual Faber Castell slide rule special made under Dutch patent and with Dutch text only. It carries the model no. 57/69 where the Dutch name translates to “capacity ruler for local heating” with all sorts of brickwork and other types of wall material, combined with the internal size of a structure. The slider has 2 sides to use and extra information on the back (also in Dutch). It comes in the original case which is in very good condition but missing the small piece on one side. The rule and cursor are in very good condition with some signs of use and age. It measures ca. 30 cm or ca. 12 inches. Check the attached video on how to work your vintage man tool : slide rule operation instructions!
Faber Castell 57/69 Heating slide rule Dutch 1965 Germany
Faber Castell 57/69 Heating slide rule in Dutch, produced ca. 1965 in Germany
1 in stock
Shipping & Delivery
Ask quote for your specific order please! GUIDELINES are but not restricted to: Low flat shipping rates NL- 5 euro - EU shipping 10 euro - World shipping 20 euro - 10% discount on orders over 150 euro. With a min 35 Euro to make this possible. If this does not work for you please contact me at [email protected] All mail answered within 24 hours but most of the time much quicker!