I'm sure you all have heard the adage that “A little bit of knowledge is a dangerous thing.” Perhaps the following is an example of this.
You may have seen examples of the Honduras “1929 á 1930” issue with an inverted overprint being offered at greatly increased prices because the overprint on the stamp is inverted.
Although the decree authorizing this issue stated that the stamps were to be overprinted diagonally reading from lower left to upper right it was not followed. Except for the 5 centavos and 6 centavos stamps, which were printed in sheets of 50, all the other values were in sheets of 25. The printing was done at the Litografia Nacional at Tegucigalpa.
Shown here are two sheets of the 1 Peso stamp. The first example shows the overprint when the sheet was fed into the press correctly. The second sheet when it was fed inverted. If you look closely you will see that the “inverted” overprinted variety is actually more common than the non-inverted. There are 15 examples of the invert and only 10 of the non-invert on the sheet of 25.