I think as well that you can find three or four groups of this blades.
The first one are the "garabs", the high end pieces with very good blades, you can find here many pictured by searching, here is my decent one:
Second group would be the user, there are fighters and also working talibons, see for example here: http://www.vikingsword.com/vb/showt...ghlight=talibon
and here: http://www.vikingsword.com/vb/showt...ghlight=talibon
At third group are the WWII ones, sometimes very fancy, see here: http://www.vikingsword.com/vb/showt...ghlight=talibon
Your family exists from working pieces of the second group and the most from the third group. Feel the handles, are they worked for use or they are only fancy? Look for the patination. The from me shown examples have been all affordable. I think that Ian accumulated them to a time when they still have been very cheap.
Here is another very interesting thread you will enjoy: http://www.vikingsword.com/ubb/Forum1/HTML/001242.html