Difference between 222 and 274 carbon paper

1. In appearance, the words produced by Shanghai Huideli Stationery Company and Shanghai Carbon Paper Factory appeared in the lower left corner of the previous model 222, but the words produced by 274 did not.

2.222 The size of carbon paper is 185 times 85mm. The size of 274 is: 12.75mm times18.5 mm.