Thrall Phase 3 60'8" Opera Centerbeam

The top beams of Gunderson cars are noticeably different than the Thrall cars. Other spotting features are there are only 11 opera windows where all other 60'8" Opera Centerbeams had 12, a toolbox on each side under the deck between the 9th and 10th operas, and there are 16 winches per side instead of 15 on all other cars this length.