Malta's 2002 Personalities set, designed by Harry Borg and printed by Bundesdruckerei in Germany, exists with a variety.
All the values were printed in sheets of 10, but 15Ä‹ and 35Ä‹ had 6 stamps from the sheet with a dot on the Ä‹ (for
ċenteżmi in Maltese), and the other 4 with the dot omitted. The 3ċ, 7ċ and 50ċ do not have ths variety.

Here is a close-up of the value tablets:

These are listed in the local JB catalogue, as nos. 1230a and 1231a. They are catalogued at the same price as the normal stamps:
15ċ: €0.70 mint, €0.60 used.
35ċ: €1.50 mint or used.
My question is: are they listed in Gibbons, Scott, Michel or Yvert et Tellier, and if listed, what are their numbers (I only know SG, if listed they would be 1281a and 1282a)?