Below we have identified the different shards shown on the photo row by row. Note that no research has been done to pottery specific to the period (before 1508) of the naval Kingdom of Hormuz , of which the harbours of Sohar, Muscat and Qalhat were a part before the arrival of the Portuguese. The Kingdom was run by Persians and Omani. Oman was occupied by the Portuguese between 1508 and 1648.
See the photo slide-show for the back of these shards.
Bottom row left to right)
Name: "Some shards of Islamic pottery"
Origin: Oman / Middle East