i recently aquired 3 vises: a monster bridgeport, a heinrich and one labeled "DAUM" it also has "made in germany" and "polyp drp" on it. i cannot find any references to them on the web..anyone heard of this company? it really unusual - both jaws move toward the center and has dovetail ways. the jaws defy description, a photo would be the only way thanks for any info, rtv