Item Title:
Lonlabel 'Philarule' measuring tool for measuring stamps and postmarks. I. Ruler tool: clear plastic, with diagonal measuring scales. Inscription reads 'LONLABEL PHILARULE' 'PROV. PATENT 3422/57'. II. Card case for holding the plastic ruler, brown in colour, no inscriptions or markings. III. Paper instuctions leaflet, with illustrations.