That's a 210 Hardtop. See chart below. A 210 has the quarter trim/moldings, the 150 doesn't.Post 66883
The pix shows a 55 Chevy hard top, but it's a 150 model.
I don't recall seeing a 55 150 hard top, all I recall seeing back in the day were Bel Airs. 56 and 57s had some hard tops that weren't Bel Airs...think 57 even had a 4 dr hard top that wasn't Bel Air.
Help me out.....is that pix a Canadian 55 or something ?