Variety of watermark found: 

.1 Without watermark
.2 Circle with a star inside, plus VN

Varietà di filigrana trovata :
.1 senza filigrana 
.2 cerchio con stella interna , più VN

 

20 HAO 1948

PICK 13A_DRV 13A  .1 Without watermark 

PICK 13B_DRV 13B  .2 Circle with a star inside, plus VN

 

 

 

 

 

50 Xu 1948

PICK 14A_DRV 14A  . Circle with a star inside, plus VN 

BLUE SERIAL NUMBER

 

 

50 Xu 1948

PICK 14B_DRV 14B  . Circle with a star inside, plus VN

RED SERIAL NUMBER