Re: MB-152 on e bay with four blade prop & luftwaffe markings
It may be a delivery prop: production was delayed by a shortage of props so aircraft would be fitted with such a prop for a ferry from the factory to a storage centre, and combat props fitted later when available.
I'll let others comment on the likelihood of a later type: from Green's "baby" books the 155 and 157 had three-blade props.
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