### Leonhard Euler

*(this stamp was issued by the Soviet Union on Apr. 17, 1957, to commemorate the 250th anniversary of Euler's birth)*

### Jakob Bernoulli

### Johann Bernoulli

### Daniel Bernoulli

### Nicolaus Bernoulli (I)

### Nicolaus Bernoulli (II)

### Johann Bernoulli (II)

### Jakob Bernoulli (II)

### Johann Bernoulli (III)

### Jakob Hermann

### Niklaus Fuss

### Johann Albrecht Euler