Help needed with Roberto Clemente Louisville Slugger

[KNH]

Found this at a yard sale today. I know very little about bats. Hoping someone can help me with the approximate value. It is a Roberto Clemente Louisville Slugger. The # 9 is above Louisville. The barrell says Professional Model with his signature and Louisville Slugger. No markings on the knob. No cracks anywhere. It is a 35" bat. Thanks.
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[MGHPro]

The bat is from the 80's.. Based on the condition, you might be able to get $20-25 since its Clemente
Matt

[KNH]

Ok. Thanks for the help Matt.