SPECTRUM by BILLY COBHAM has sold 60,000 copies in United Kingdom.
SPECTRUM certifications and sales
|Country / region||Sales||Certification / source||Certification date / sales as of|
|United Kingdom||60,000||1x Silver||1 January,1978||
Certification / note: 1x Silver
Certification Date / sales as of: 1 January,1978
|Total sales||60,000||(in 1 country)||
(in 1 country)