Guilty as charged I have had another look and, in words (don't they paint a thousend pictures or something) ... the chain goes ...
Top of Chain Ring (CR) to top of Outer Rear Sprocket (ORS)
Bottom of ORS to bottom of Front Sprocket (FS)
Top of FS to to bottom of Inner Rear Sprocket (IRS)
Top of IRS to bottom of CR.
Therefore the ORS and the IRS turn in opposite directions so this bike is either fixed and does not move at all, or one of the rear sprockets turns freely making the bike not a fixed and contravening the advertising on one of the stickers on the chainstay
'Tis neither one thing nor 'tother, neither fixed or free
Are the two rear sprockets different sizes? It looks to me like the inner one is smaller.
I vaguely remember seeing a drawing of some vintage (possibly Victorian) 2-speed internal-geared hub with no control wire: what you had to do was pedal backwards to get the lower gear. This may be some attempt to replicate the effect. Both sprockets are freewheels in the normal orientation. If you pedal normally the outer sprocket is driven and the inner one idles. If you pedal backwards the inner sprocket is driven and the outer one idles.