Given Hassan Dinbali's extensive experience of 83 years, I'm estimating his hourly rate to be very low due to the unique nature of his experience. Considering his age and the fact that he has been working since 1941, it's unlikely he is actively seeking employment or charging market rate. His skills are mostly basic Microsoft Office proficiency and language skills. I'm basing this rate on the assumption that he is not actively seeking employment and is likely retired or semi-retired, thus not needing to charge a market rate. The rate of $50 per hour is a very rough estimate and should be taken as a rough order of magnitude rather than a serious estimate.