I am interested in context. Lol. (I've been following some other random Cooke lenses that are around these numbers, just to see if I can get a sense of production lots and dates of known series. We know that Series XIV & XV Convertible were introduced in 1933-34. I added the serial numbers of my 13" & 16.5 Series XIV on a sidebar.)

Mark, thanks for those numbers. I suspect Series I and Series VIA will be the most uncommon. 282483 is also a 15.5 VIA, so I suspect they must have been making them in small lots.
Jim, is that 18" VI knuckler black? I had that on the list,just want to confirm the black paint.

I'm tracking non-English engraving, black paint and B&J lenses as part of the database.