CAPE VERDE. Banco Nacional Ultramarino. 50 Escudos, 1921. P-37s. Specimen. PMG Choice Uncirculated 63 Net. Previously Mounted.,A nice medium format design from the BWC. Perforated SPECIMEN above the Vice Governors signature panel. PMG mentioned previously mounted in the comments section which can be seen through the face on the left of the note, and through the back right.,PMG Choice Uncirculated 63 Net. Previously Mounted.