Please use this applet either to know if your PS0S QSL has already mailed or if you are on the log. There is no backlog, all received cards were mailed to the date.
The original log was handwritten and typed to the database software so, if you aren't in the log, there is a minor chance we have made an un-intentional error, do not hesitate in contact the operator PY2SP.
With thanks to Richard Everitt G4ZFE for the search applet.
