Having been distracted by unreported control letters on a non-Mexican series of notes  this is a little bit late for the end of May but as I had already selected the notes to add, I thought why not.

The journal entry ‘From Ukraine to Guatemala’ commented on a recent auction for a 1 peso note issued by the Banco Comercial de Guatemala and how completing the issues for this bank would be an impossible set all on its own. The second Guatemalan note this month is also a 1 peso example but this time from the Comite Bancario de Guatemala – a full set of these notes would probably also be in the ‘impossible’ category. Hence one note per bank

The second Journal Entry in May added Durango to the Mexican States so to make a pair of notes from Mexico an example of the 1000 pesos denomination from the Nacional Monte de Piedad was added to the ‘Impossible Set’.

As some countries still have no representative notes, the 3^rd pair of notes for this month comes from Colombia. Both honour the memory of Francisco Jose de Caldas, another interesting character in the independence of the nation states of the region, who also held a long-standing interest in science and engineering.

Some of the notes destined for ‘June’ should also address more of the remaining ‘No notes’ entries which seem to be becoming more obvious as the Set evolves. Current 'Impossible Set' can be found at:-

https://notes.www.collectors-society.com/registry/notes/ViewPersonalCollection.aspx?UserCollectionID=1822&Tab=list