I am a dentist in my 46th year of practice. In my 4th year- I acquired a Belmont chair. ie 1978. I still have this chair today. It has had an hydrolics oil change in 1990. It has had 2 x upholstery recovers, the last one in 2012. Today , my patient's still comment on the comfort of the chair. And I still love it. It has outlasted 2 other brands, when I needed additional chairs. I only need one today- and it is my old faithful Belmont. Thanks Belmont for your 1975 model. It is still an excellent asset in 2021. You have my permission to publish this testimonial if you wish. I love my Belmont chair,