A very interesting and informative article that starts bringing the adjacent ancient state of Dilmun on the Arabian Gulf (many of the finds have been in present day Bahrain) to light, and what must have been a very rich trade and cultural relationship with ancient Indus cities, as we are finding Oman.
From the abstract
The Indus inscriptions on the seals are investigated with particular emphasis on the abnormal occurrence of prefixed ‘twins’ signs in the western inscriptions. The hypothesis that a language different from that of the Harappans was used on these seals is reconfirmed on the basis of a newly found seal with a particular instructive pseudo-inscription. The paper concludes that breakaway Harappans operating in the western orbit invented the Gulf Type seals but that the type from around 2050 BC became practically synonymous with the merchant communities in Dilmun.
First published in Arabian archaeology and epigraphy, 2010: 21: 96-134.