Second Glance: Tools of the trade — September 8, 2013.

Find the 12 differences between the original photograph, top, and the altered photograph, center. Answers at bottom. (Degree of difficulty: advanced.) For more Second Glance puzzles, click here.

Second Glance puzzle by Randy Mays.
Original photograph by Washington Post reader L.M. Bennett; electronics workbench in Potomac in June.. Published on September 6, 2013, 6:00 a.m.
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