I'm estimating Lewis's hourly rate to be around $50 based on his extensive experience in retail sales and customer service, which is on the lower end of the scale. Considering his skills and experience, a more typical rate for someone in his position in the US would be around $75-$100 per hour. However, given the unique duration of his employment (over 115 years), it's clear that he's not just a salesperson, but a institution in the retail world. His longevity and dedication to the field warrant a lower rate, but still significantly higher than average. For the sake of estimation, I'm rounding down to $50 per hour.