Our school Staedler HB pencils were all yellow and black such as these: https://www.glsed.co.uk/product/stationery/pencils/blacklead/staedtler-hb-graphite-noris

Our school Staedler HB pencils were all yellow and black such as these: https://www.glsed.co.uk/product/stationery/pencils/blacklead/staedtler-hb-graphite-noris-pencils-pack-of-72/g290387 https://www.glsed.co.uk/product/stationery/pencils/blacklead... The occassional ones were red and black, I think those were more likely to be 'B' or '2B' ones, but it's been longer than I can remeber since I used such a pencil.