These are dressmaker’s pencils, for marking patterns on fabric. The brush is for wiping the mark off afterward, as ordinary erasers would be inefficient.
The top three are somewhat vintage. I’ve got some newer Dritzs, but they are mint in package, and I wouldn’t want to limit their investment value by removing them. That’s tongue in cheek (an idiom, my foreign readers), of course. Yet I’ve always been reluctant to remove pencils from their blister packaging, even though I’d prefer to put them with my other pencils and save space. And eventually, the glue on those packages disintegrates and the pencils fall out anyway.