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Bag indicates that it was made in 2011.
This one is definitely from 10214 London Tower Bridge. I only have a used set that didn't have the original bags, but all parts and colors match perfectly.
The Technic Wedge Belt Wheel (Pulley) only comes in tan in 5 sets and the only one of those sets that has more than 2 (which your bag clearly does) is 10214 Tower Bridge.
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