| Champions League 1956/1957 - Appearances as Referee |  |
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| 18/04/1957 | ACF Fiorentina | - | Crvena Zvezda | 0:0 | - | - | - |
| Champions League 1956/1957 - Appearances as Referee | |
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| 18/04/1957 | ACF Fiorentina | - | Crvena Zvezda | 0:0 | - | - | - |
| Complete name: | Klaas Schipper |
| Born: | 02/12/1910 † 19/07/1961 |
| Place of birth: |
Delfzijl, 
Netherlands |
| Nationality: |
Netherlands |