Conditions in Oman as of 1970 could be something from a TL where the industrial revolution did not happen.
"Said became more reclusive from his people and country. In 1965, after making concessions to export oil with Iraq, Iran and Britain, he did little to improve the life of his people. The benefits of this deal would not come to fruition until his was deposed in 1970 in a palace coup.
In 1965, the province of Dhofar revolted, this time with the support of the People's Republic of China and some of the nationalist Arab states, followed by an assassination attempt in 1966. It had a marked effect on Said, causing him to become even more erratic in governing the country. It was forbidden to smoke in public, to play football, to wear sunglasses or to speak to anyone for more than 15 minutes. No one was safe from the sultan's paranoia, not even his own son, Qaboos, who was kept under virtual house arrest at Al Hosn Palace in Salalah.
Before he was overthrown in 1970, because of his backwards policies, Oman had an under 5 mortality rate of around 25%. Trachoma, venereal disease and malnutrition were widespread. There were only three schools, the literacy rate was 5%, and there were only 10 kilometres (6 mi) of paved roads."
"After slavery had been abolished in Bahrain in 1937, in Kuwait in 1949 and in Saudi Arabia in 1962, it still flourished in Oman. By this time, the Sultan himself reportedly owned around 500 slaves, an estimated 150 of whom were women, who were kept at his palace at Salalah; a number of his male slaves were rumoured at the time to have been physically deformed due to abuse.
Sultan Said bin Taimur reportedly owned around 500 slaves, descendants of enslaved people trafficked from Africa, which were "kept tightly isolated from the rest of the population, and banned from marrying or learning to read or write without his permission". After a slave began to evade control, he passed a law under which all people of African descent were legally classed as slaves. Reportedly, "kept many of his slaves locked up there and used to enjoy beating them", and when he lived in Muscat during the 1950s, he "used to make his slaves swim in the water underneath his balcony and then amuse himself by shooting at fish around them".
A correspondent who visited Salalah after Sultan Said's removal in 1970 reported:
"Among 12 slaves presented to foreign journalists some had been forced, under pain of beating, not to speak. As a result they had become mutes. Others stood with their heads bowed and eyes fixed on the ground, their necks now paralysed. The slightest glance sideways resulted in a severe beating or imprisonment. Others had incurred physical deformity from similar cruelty. Said was also found to have 150 women locked away in his palace and it was known by some of his British aides that he had been assaulting young girls".