10 Qirsh Reopening of Suez Canal, Mule

This piece is a mule — the product of mismatched dies from two different commemorative issues. The obverse and reverse were not intended to appear together, making this a mint error rather than an authorized type. Egypt's coin production in the early 1970s generated several such anomalies, likely a consequence of managing multiple simultaneous commemorative programs with overlapping production schedules at the Cairo mint. KM#431 documents it as a recognized variety rather than a one-off accident, suggesting the pairing occurred with enough frequency to enter the numismatic record systematically.