Scarcest ERG $20 range

I have available ERG 2889245, a $20 note that belongs to neither the upper nor lower range of notes that nearly all ERG notes are found in. The topic of prefix ERG was discussed 2 years ago...
http://www.cdnpapermoney.com/forum/index.php?topic=13634.0

So basically, no ERG notes are known for the serial number range 1.800-6.630 EXCEPT for a small ream of 33750 notes (ERG 2880000-2913749) which has been determined to be numbered with a skip interval of 750 instead of the usual 8,000.

Prefix ERG is not a date changeover or signature changeover. It's just a prefix with peculiar numbering patterns, something of a researcher's dream and/or conundrum. With so few of these notes found and recorded, there's no way to know if they are special.

If anyone wants this note, asking price is $40 or best offer. Condition of the note (shown below) is aVF with a 5mm tear in the right edge.

link: http://imagizer.imageshack.com/img537/7484/W5u8Fw.jpg