Would someone verify what I think I have here - Thanks

News: Welcome to the Canadian Paper Money Forum.

This looks to be a pretty rare sig and prefix combo.  Can someone verify this for me?  Am I reading something wrong?
I have 11 of them in sequence
Thanks

Very nice.... these are S/R Test Notes.  Each note books for $500 in AU; $725 in Unc; $850 in CUnc; and $1000 in GUnc.  A group of 11 high grade notes coming onto the market at the same time may actually depress the price. 

Thanks eyevet
 

You have a very nice set of notes!   

Very nice.... these are S/R Test Notes.  Each note books for $500 in AU; $725 in Unc; $850 in CUnc; and $1000 in GUnc.  A group of 11 high grade notes coming onto the market at the same time may actually depress the price. 

They seem to be become more and more widely available in all grades. Overall the value of the S/R test notes are on the decline in all 3 signature combinations.