Soory the old HomeLite XL12 has got to have that beat?
First Cs 60 S was sold in 1965 !
"Echo CS-60S would fill that slot. Tough, dependable, and still being made after 45 years. I have 8 of them...Bob" last sentence is from Echo nut Bob !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!