Wow I used to pick up swimming pool chemicals right next door to Mesinger back in the 80s they were in the same building..They had seats in boxes all over the building..Bummer I didnt snag any of them back then..
Excellent ref! Sweet. Looks like mine is the s-500 Series- Sit-in. I've had the smaller version on a couple Columbia based bikes. It is pretty amazing how well these seats, with this rubber held up over the years. So much sturdier than usual banana vinyl.