The letter has a cancellation on 26 December 1983
There are some errors in this cancellation:
- The stamp on right lower corner, orange, 65 p, portraying
King Juan Carlos was issued in 1993. Therefore, it could not be used in 1983.
- December 26th (second Christmas Day) used to be holiday in 1983, so the Post Office used to be closed.
- December 26th was Sunday in 1993 (the probable year when the letter was circulated). It is not likely that the letter was cancelled that day.
It was obviously a hand cancellation with the date mismatched in the date-stamp.