I only found out these existed yesterday but I thought it was interesting.
They're printed by NPA to demonstrate polymer notes to potential customers.
One type:
(http://www.polymernotes.org/images/promotional/x/XNAS1X1F.jpg)
(http://www.polymernotes.org/images/promotional/x/XNAS1X1B.jpg)
Another type:
(http://www.polymernotes.org/images/promotional/x/XNAS1X2F.jpg)
(http://www.polymernotes.org/images/promotional/x/XNAS1X2B.jpg)
And another type:
(http://www.polymernotes.org/images/promotional/x/XNAS1X3F.jpg)
(http://www.polymernotes.org/images/promotional/x/XNAS1X3B.jpg)
Information from here: http://www.polymernotes.org/resources/promotional/xpromotional_npa.htm
There's also one for sale on eBay at the moment for $1000: http://www.ebay.com.au/itm/300798716229?ssPageName=STRK:MEWAX:IT&_trksid=p3984.m1423.l2649#ht_5022wt_1220
They are nice notes to have. But they aren't worth $1000 each. There are many out there and supplied free to many countries as examples. They are NOT test notes despite what Bullion 303 describes. They are example/promotional notes. Real polymer test notes are worth $20k+ easily. Though one hasn't hit the market yet.
That is awesome. I never knew. I need one for my collection. But it isn't worth no-where near $1000...I'll have to tell him he's dreaming. I offered $20.00.