VPI 16 or 16.5 RCM identification help needed

I was wondering if some VPI 16 or 16.5 experienced owners could offer some information?

I just bought a preowned VPI from Agon that was advertised as a "16.5" model with very low hours, great condition,etc. It arrives in a non-VPI u-haul packing box and it looks certainly looks used, but not bad, but not with very low hours either.

I look at the metal plate on the back and it reads Model 16 and serial no. 6264. It has a foam coaster on the platter rather than a cork one. Also the hinged acrylic cover is dark smoke color that wraps L-shaped over the back.

I suspect it is really an older model 16 and not really a 16.5. Do the 16.5 models typically have "16.5" stamped on the label?

Does anyone know if that serial #6264 identifies it either way? {I realize I can call VPI during the week, but would rather not hassle them)

Thanks
Kenreau