1966
on mine it's the model year.
I think they (B40A engines with 25HP) are made between 1973 and 1976, but exact year for your serial number I don't know.
Chrome plating was first used on Model Ts in the 1920s.
In year 1970s, Richard L. Nolan an American business theorist developed the model for growth and then published by Harvard Business Review. Initiation, contagion, control, integration, data administration and maturity are the six model stages of growth.
Multi-threading is a programming model that allows computers to communicate with each other using the same resources, but work independently. This process became supported in the late 1990s.
An 18 hp Evinrude outboard, model 18202 would be a 1972 year model.
A 15 hp Evinrude outboard, model number E15BACEC, would be a 1989 year model.
A 15 hp Evinrude outboard, model number 154040 would be a 1974 year model.
Model number E25TELCSA, is a tiller electric start, 20" shaft, 1980 year model, 25hp Evinrude outboard.
84
A 40 hp Evinrude, model number E40TELCO, is a 1985 year model.
In order to determine the year model for a Evinrude, or Johnson outboard, the engine model number is used.
Model number 6303, would be a 1973 year model, 6hp Evinrude outboard.
The year of model #e15rlcde is 1986
A 28 hp Evinrude, model number E28ESLCE would be a 1989 year model.
Model number 35702H, would be a 1977 year model Evinrude outboard.
A 70 hp Evinrude outboard, model number E70ELCO, would be a 1985 year model.