Royal 603 vacuum question

[KirbysNphones]

I recently purchased a Royal 603 vacuum, and was wondering what year it was made.
The serial number is "17M H 32108" with the spaces and all. The "H" was stamped on later, it appears.

 

[KirbysNphones]

I just found the thread that tells how to decipher the SN, meaning this one was made in December of '71.
My next question would be: is the bag style the style used on a 603, or is it a replacement?

Thanks for any help!
Will

 

[kirbyclassiciii]

Will,

As far as I know the original bag was a darker shade of blue than this one.

~Ben

 

[kirbyclassiciii]

Will,

Another thing about the SN: the "H" is the motor series revision letter.

~Ben

 

[KirbysNphones]

Ben,

Thanks for the info. Judging from your posts, you seem to know your stuff!
This vac isn't all that bad, but my 1999 Royal 2025 has a lot more suction, probbly due to the age difference.
This vac is still pretty cool, considering it has lasted since the 70's, and I doubt these throw away plastic vacs purchased from big box stores would last half as long!