Rare freddy/queen photo valuation anyone??

hi
i have been donated this prize for my daughters auction at the end of the month but have no idea on value and was wondering if anyone could help..
the picture is a one off
original of freddie at the 1971 oakland park gig, california, it was donated by a amateur photographer from back then that has a collection worth 1000s now he says
hope someone can help
many thanks
dmacca777@aol.com

The photo is from 1980, and an excellent one !

It's hard to say what these kinds of pictures would be worth, but maybe it could get 20 or 30 bucks at an auction. If the photographer were famous (and dead), it would be worth a lot more. Either way, it's still a great photo, pro gear or not. Probably just from a few rows back.

Great pic!