21 COMMENTS

  1. I have just about the same vac. The Royal Commercial, the one I have is a the same age as yours. I had to replace the bag because of holes in the old one. I also do not have a light on mine. All and all I have to say that Royal kicked Kirby’s ass with this cleaner.
    All medal blades and whole lot less plastic, something Kirby lacks.

  2. Do you know what year your Royal dates to? I like my cleaner and I wonder how old it is since I bought it used.

  3. not just the vaccum’s you should say the whole house. my great grandmother’s the same way she stillhas the same stuff she had in 1972

  4. You might be able to find a date code on the bottom of your Royal. There is a letter to represent the month and two numbers for the year. Example, my Royall 880’s date code is D84. So it was made in December of 1984.

  5. Each letter code represents the month of a year. “D” would be April. But did they use the letter “I” (which is confused with the number 1) to designate the month of October, or did they skip and use the letter “J” instead?

  6. @southjk
    Your Royal Commercial upright appears to date from the late 1960s to the early 1970s (1968-1973) and, if it were manufactured prior to about 1970, it would just have a model/sequence # (e.g. 608-E34369). If 1970-1978, it would take the form of year/decade/month/plant/sequence (e.g. 67IA51391 – September 1976).

    Something tells me the Adjust-O-Rite plug is a 1978-1993 replacement.

  7. @southjk
    Model 602, serial #??? “760G” refers to the U.L. code. I wonder if the serial # portion is obscured?

  8. @southjk
    That would make this machine a 1977 model. The serial # reads as follows:
    7 = calendar year 1977
    7 = calendar year decade 1970s
    C = calendar month March
    A = assembly line/plant code
    28866 = unit sequence number

  9. The bag currently on this 602 is not original, as it would wrongly lead people to believe it is a heavy-duty commercial model. Why? The 602 is classified as an economy model. The original bag was actually colored gray and was a “shake out” bag (did not use throwaway bags).

  10. @southjk
    And if the bag on this Royal were correct, then the model would be a 611 and it would also have a 3-wire cord instead of a 2-wire one.

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