The correct option is 1 and 3 only.
Explanation
The seals of the Indus Valley Civilisation are among the most significant artistic and administrative artifacts recovered from sites like Harappa and Mohenjo-Daro. They provide crucial insights into the trade, religion, and script of the period.
- Statement 1 is Correct: The standard Harappan seal was a square plaque, typically measuring 2x2 inches. While seals were made from various materials such as terracotta, gold, agate, chert, and ivory, the most common material used was steatite (a soft stone).
- Statement 2 is Incorrect: Although the seals feature a script that is pictographic in nature (consisting of symbols representing words or concepts), this script has not yet been deciphered by scholars. The inability to read the script remains a major barrier to understanding the full history of the civilisation.
- Statement 3 is Correct: Seals served multiple functions. Primarily, they were used for commercial purposes to stamp wet clay on bundles of goods, certifying their contents and ownership. Additionally, the presence of holes in some seals and their discovery on skeletons suggests they were also carried on the person, possibly serving as amulets or identity markers.
Key Takeaway: Harappan seals were predominantly made of steatite and square in shape. While they bear a pictographic script, it remains undeciphered, distinguishing the Indus Valley Civilisation from contemporary civilisations like Mesopotamia where scripts have been read.