Measuring Calipers
![Andy Anderson and Jo Anne Van Tilburg improvising with bamboo poles as measuring devices, Easter Island (Rapa Nui). DCO/JVT.](http://www.eisp.org/wp/wp-content/uploads/83notes04.jpg)
Andy Anderson and Jo Anne Van Tilburg improvising with bamboo poles as measuring devices, Easter Island (Rapa Nui). DCO/JVT.
![Design sketch for first set of measuring calipers by Johannes Van Tilburg.](http://www.eisp.org/wp/wp-content/uploads/83notes03-365x500.gif)
Design sketch for first set of measuring calipers by Johannes Van Tilburg.
Posted on April 15th, 2009 by EISP Staff | Category: 1980s, Field Notes & Documents |