This happens to be another razor we don't know much about except people buy them with no idea or care for the history behind them. This thread will try to put together as much information based upon ads and other sources to infer the order they were produced in, what years they were made and so on and so forth. First piece of misinformation these razors were always called Krona razors. The were always called Schick double edge razors except in 1967 when they produced the Eversharp razor. Depending the year they were packaged with different blades hence the Eversharp name for one variation or Schick name. The only year we know for sure they were referred to as Krona razors is in 1968. Whether that holds true from 69 - 77 I do not know right now since they packaged the Schick razors with different blades depending the years. From 1965 - 1967 the razors were packaged with Schick stainless steel DE blades. In 1967 they were packaged with Eversharp double edge blades, this set also coincides with the grey handle Eversharp Eagle razors. In 1969 or 70 through at least 1974 you had 2 distinct packages and razors the metal knob razors were packaged with the Krona edge blades and the plastic knob versions were packaged with the super chrome blades. It looks like they varied the pricing on each by changing the amount of blades included with each razor. From 1975 - 1977 best I can tell they stopped selling metal knob razors except for the gold plated ones known to have been sold in 1976 for the bicentennial. If they produced gold plated razors in other years I do not know. So with that the production years for these razors were 1965 - 1977. We also know when they changed the metal knob styles from short to long no later than 1967 when they produced the Eversharp razors based upon the ad record alone. Whether they also changed them on the Schick razors is unclear but we do know that 1968 they did for sure. Next post will cover the actual timeline.