What you have there is either a switched pot or a stereo pot.The connections on the back of the unit (the bits with red) will either be one of the pot channels, or a switch.The connections on the underside (the ones bent at right angles) are definitely a pot connection. The center one is the wiper.
If the pot goes "click" at one end, or you can pull or push the shaft, then it's a switch. Otherwise, it's just 2 pots.
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