Note in the 2011 PG the one on the right - as per verification directly with Woody - is now a 162.1 Narrow Dome

Here is a picture of a CD 162.1 on the left and a 162 'Narrow Dome' on the right -- under a lamp. To view a picture of the same two insulators in sunlight: [id=50868117]. To view a sunlit picture of a CD 162 and a 'Narrow Dome' [id=50868280]. To view a CD 162 and a 'Narrow Dome' under a lamp: [id=50868410]