Even though I'm not a big fan of the small print on front tees -
Showco logo's always boosts value - especially when paired with a sought after band tee like VH.
It's probably from their first world tour in 1978.
But its value takes a big hit because it's been chopped up so much - not just the arms but the collar too.
I'd say you'll be lucky to squeeze $100 out of it.
Jimmy J
(Please note: Legit checks I do in this forum should not be considered 100% conclusive; I'm simply giving a gut reaction based on the limited information provided.)