Franco Bollo Sardinia Stamps Identification

Hi. I have two old Sardinian newspaper stamps- one has Cent Uno at bottom and the other has Cent Due. I have seen the first one- Scott #P1a but not the second. Can anyone help identify it? I have tried to include two pictures but cannot at this time. Thanks! Frank P.S.- I just learned that cent uno is one cent and cent due is two cents- sorry. However, still cannot value these stamps. Any help would be appreciated.

Use google or such.

As David states, Google and ye shall find, P1 and P2 (1861) both Gray. A search through ebay sales will show that they do not bring much money, higher asking prices...but actual sales seem to be less than $10.