Instead of filtering out what I didn't want, I tried to pull out what I did want more effectively.
I included the names of the places where the best razors are made. I found my most recent purchase with that approach. It happens the seller didn't use the words straight or strop. I felt kind of sorry for the guy until in answer to my question about the condition of the blade he sent back this:
I guess he was ****ed about how low it went for! I half expect him to break off the blade before he ships.
Solingen Herder's Cutlery Razor & Sharping Leather Belt - eBay (item 120287427975 end time Aug-01-08 07:06:03 PDT)
Anyhow, I don't think I would have found it with a filtered search.