If you look closely around the side edges of the tuner, the wood seems to be a different color... which would indicate to me that something else was in there originally. It may not have been a tuner though, it's more likely it was a little record bin or something.
I would think the 'proper' tuner for that thing is the V-M 1413. It was intended as a drop-in upgrade for the phono-only consoles.
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