Contact printing papers are silver chloride papers. Chlorobromide papers are enlarging papers. Some enlarging papers are just bromide papers, but most are chlorobromide. The paper under discussion is an enlarging paper. The beautiful thing about silver chloride papers is not the slowness, but the gradation of tones. Chlorobromide papers have more toe and more shoulder; they are not straight line papers are chloride papres (contact printing papers) are.

Sure, speeds will be long with dense filters. That has nothing to do with a paper being a contact printing paper or not.

Michael A. Smiith