Wnere can we get 100 sheets of NCR (the old-fashioned no carbon) typing paper?

Dear Osky, 

Start with NCR Direct: 
<http://www.ncr-direct.com/Dispatch.jsp?.NewState=Browse_Prod&Start=PRODUCT&__FFCSessionID=C07FFB0C294A00FA81BFD49FFBFE5500>

Froogle.com lists plenty of possibilities: 

NCR 909538 Label, Inkjet, Address, 1 In. X 2.625 In., 30per Sheet,
100 Sheets, White. 
http://froogle.google.com/froogle_url?q=http://www.fjaproducts.com/common/products.asp%3Fprodid%3D18753%26referral%3DFglshop%26Coup%3D69%26popup%3DN&fr=AK33XrNdY81S7SeaZRfKg1Z7bw6pZ9ShpwZ0Uh2ASjh-AAAAAAAAAAA

NCR 909321 Label, Laser, Address, 1 In. X 2.625 In., 30 Per Sheet,
100 Sheets, White. 
http://froogle.google.com/froogle_url?q=http://www.fjaproducts.com/common/products.asp%3Fprodid%3D18804%26referral%3DFglshop%26Coup%3D69%26popup%3DN&fr=AJEUYdr1rjikxroxafiOoG17bw6pZ9ShpwZ0Uh2ASjh-AAAAAAAAAAA

Paper.com
https://secure7.nexternal.com/shared/StoreFront/default.asp?CS=paper&BusType=BtoC&Count1=968151271&Count2=885291695&Target=products%2Easp&ProductID=8337
(Many types of NCR papers for typing, printing and cash-machines). 

Office Max 
<http://www.officemax.com/max/solutions/product/prodBlock.jsp?prodBlockOID=537231402&cm_ven=Froogle&cm_cat=Tech&cm_pla=Cartridge&cm_ite=Cartridge&BV_SessionID=@@@@1695262292.1078437049@@@@&BV_EngineID=ccdkadckkkedgilcfngcfkmdffjdfgn.0>
ideal for typewriters (it's a 25 sheet packet, though).

My search strategy: search Google, and Froogle. Maybe others for your
own satisfaction could be found at Froogle <www.froogle.com>.

Please contact me if you need any further clarification on this answer
before you rate it.