Month: December 2013

Quipu

Some old South American Indian cultures calculated on quipus, which were necklace-like objects where they would tie on the dangling strings different kinds of knots to indicate a number. The type and placement of the knots indicated the number. Subtraction involved untying knots. It was commonly used for accounting, trade and other business. The conquering Spanish didn’t fully understand quipus and thought that secret messages might be sent on them, and also considered them idolatry, so detroyed any that the found.
1461011_10201126722385739_969294468_n
Advertisements

Introduction to Identifying Common Materials in Antiques (ebook)

Offered here for download or online viewing is a new pdf ebook by David Cycleback.  It is a beginner’s guide to identifying common materials in antiques, including glass, gems, wood, metals, plastics and more.  The 100+ pages ebook is heavily illustrated in color and is designed for the beginner.

download guide

.

,

,

,

,

,