While this is far from a top line model this silver bike will most likely provide a rewarding ride.
When I see the chain set as is is it reminds me of two things, Ron Skarin way back training on the off season on a multi speed fixed, he had a freewheel welded shut, and changed gears by dismounting and moving the chain and resetting the axle, he got about a 6 or 8 tooth range that way with horizontal dropouts.
My second thought is I can imagine that some offshore company reverse engineers the old Campagnolo cambia corsa shift mechanism and makes new bikes that the current "fixie" crowd could get into and still have gears, so retro.