Highs and Lows

What exactly is considered a high or low in rerspect to its numbers? I know this had come up on the forums a number of times but cant remember and didnt write this down.
Thanx

High 999**
Low 000**

low numbered notes are listed in the Charlton Guide (16th ed - 2004) as having a number less than 1000. these are collectable and their book price increases as they get to XXX0000001. for example the $5 in the bird series S/N 100 to 999 is listed as being worth $30. from S/N 10 to 99, it is worth $35. S/N 2 to 9 is worth $90 and XXX0000001 will fetch $600. the charlton guide has no similar listing for high numbered notes, but some collectors would want them. what passes for a high or low number may be different on this site. i hope that this information helps.

Thank you rudyk for enhancing my understanding of highs and lows as well…

Thank you for the infomative post i will jot this down for reference

I also believe that certain serial number patterns give their bill a higher value…radar notes being the most obvious, but also numbers such as XXX1000000… (Are they referred to as high/low? I guess not…

money_king_84 noted:

also believe that certain serial number patterns give their
bill a higher value…radar notes being the most obvious,
but also numbers such as XXX1000000…

these are referred to as "million numbered notes" and indeed are collectable as well. for the canadian journey series, these are listed starting at $200 for the $5 and go up from there. for the bird series, they start at $325. these are for Unc. but it is difficult to find them in better than AU because they are found at the bottom of a stack of uncirculated.

other patterns recognized are ladder notes. also very collectable

Why I had asked is that I have a $20 note XXX9999271, yes I think I will hang onto it

I just got a used, folded, wrinkled 1986 5.00 xxx0003783, would this be considered a low? Surely not very collectable in good - fine condition.