How do I know if my electric bass is real or not?

i have an excel and i want to get rid of it bought it for $40 and looked it up and it says they are worth upwards of $500. doesnt have a serial # and

i have an excel and i want to get rid of it bought it for $40 and looked it up and it says they are worth upwards of $500. doesnt have a serial # and has a "made in china" sticker on the back

or:i have an excel and i want to get rid of it bought it for $40 and looked it up and it says they are worth upwards of $500. doesnt have a serial # and has a \"made in china\" sticker on the back

or:It's probably a copy, otherwise it would have Providence. This word means documentation that shows the instrument is genuine.

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