Cheap Chinese 24 position attenuator

OK, I didn't have $250 for a gold point stereo 24 position 100K attenuator. So, I bought a couple of cheap Chinese ones off of ebay, see attached photos. I know, I know, let the moans and groans begin. Anyway, I spent about an hour with my DMM and for the life of me can't find the terminal that correspond to in, out and ground. Anyone have experience with these? Thanks in advance for you help.


In
|
>
>
><---- Out
>
|
Ground
 

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