I bought my first vintage Lawn Boy 4 weeks ago for $50.00. Model L21ZPN , Ser.# G202B0510. Not exactly sure of the year but I think it's a 1991. My second vintage Lawn Boy I bought 3 weeks ago for $25.00. It carries a model # of 7232 & Ser# B2500C0481. I think the 7232 was made in1984. My 3rd Lawn boy I hope to acquire this weekend , model S21ZSN for $20.00. Afther a lot of degreaser , carb cleaner and over due maintenance . They both start on the first pull and run great. I'm so glad my Craftsman mower broke down this year. It lead me to the great Lawn Boy mower. The Craftsman is repaired running great and listed on Criags list. I would have listed some pictures but having issues doing so. Hopefully I figure at out soon.