Trying to help determine fair value for a Gottlieb Volley for a colleague at work. I have not yet seen the machine but have been told it powers up but does not start a game. I suspect it may be out of credits and probably needs a thorough cleaning of contacts. The current owner had this in their garage on a pallet for quite some time and has lost the keys and leg bolts but found the legs. Playfield and backgkass look decent for age. In full disclosure thinking of making her an offer but would like it to be fair. Was not able to find many transactions for this particular machine, so welcome any thoughts on how much this machine might be worth. Thanks in advance for any thoughts.

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Thank you all for the prompt feedback! Quite helpful and very much appreciated.