Reading the label, it says 1GB DDR 400MHz-CL2.5 PC3200U-253303-7013101.
What is really annoying me is the eBay seller (with 20K+ feedback) who sent them after I told him what they are for, and not to send if wrong.
Thanks again for your help.
PS They most resemble the third item on that list, being 128x64 Non ECC.