| Issuer | Czechoslovakia |
| Year | 1957 |
| Type | Non-circulating coin |
| Value | 10 Korun (10 CSK) |
| Currency | Koruna (1953-1992) |
| Composition | Silver (.500) |
| Weight | 12 g |
| Dimensions | 30 mm |
| Thickness | 2.1 mm |
| Shape and Technique | Round Milled |
| Orientation | Medal alignment ↑↑ |
| Engraver(s) | František David |
| In circulation to | 30 September 2000 |
| Reference(s) | KM#47 |
| Obverse description | Czech lion with Slovak shield |
| Obverse script | Latin |
| Obverse lettering | REPUBLIKA ČESKOSLOVENSKÁ·1957·10· (Translation: Czechoslovak Republic) |
| Reverse description | Bust of the founder Jan Willenberg to left, hand on chin |
| Reverse script | Latin |
| Reverse lettering | 250 LET
INŽENYRSKYCH ŠKOL V PRAZE·CH·J·WILLENBERG· (Translation: 250 years of Technical colleges in Prague) |
| Edge | Plain with stars and waves |
| Mint | |
| Mintage | 1957 - 366 pieces destroyed; KM#47.1; raised designer initials - 75 000 1957 - Proof; 281 pieces destroyed; KM#47.2; incuse designer initials - 5 000 |
| Catalog ID | 2778049060 |
| Comments |
