Height of numerals: 3 毫米. Height of xs: 2.25 毫米. Space between 'c' and first 'x' on left hand stamp: 3.75 mm and 2.5 mm on the right hand stamp. Only occurs on R.1/3 and R.9/9.
Height of numerals: 3 毫米. Height of xs: 2.25 毫米. Space between 'c' and first 'x' on left hand stamp: 3.75 mm and 2.5 mm on the right hand stamp. Only occurs on R.1/3 and R.9/9. Only listed by SG in mint condition.