Is a second hand dynamo/alternator worth anything?

[pow]

I know they are different things but I assume one of a 71' early bay is a dynamo?

I've got one in the boot of my car that due to my bus not running a standard engine is no longer petrol powered

Is it worth anything or should I take it down the tip for the scrap metal man?

 

[Resto-raider]

If it's an original it's definitely worth saving. Don't scrap it.
OG ones can be restored and there is demand for it.