We could also add
Fraction - Moon blood ( 1971 )
US bluesy rock with harsh vocals.. The first three songs are amazing
https://www.youtube.com/watch?v=TX0FelPu-tA
And Granicu's s/t album of 1973
Sounds like Zeps..
https://www.youtube.com/watch?v=ALByuLRBbs0
https://www.youtube.com/watch?v=0JMvCGPUY_c