Moro Pira for comment

[mmontoro]

For more specific information about age you might check with Cecil Quirino, note the acquistion dates of any examples you are lucky enough to find in museum collections or try to date any photographs/postcards which depict them. Some of the more well read members in PI history and literature may have seen refernces to them in a publication with a known date. There seem to be few enough older Pira around that I think you are looking for needles in a haystack.