neither am I - agree that the majority of examples on the Parker Pen site are g.f. trim, though there's a sprinkling of chrome furniture pens, and you could be correct that it's for this reason that the latter - particularly with an extra wide chrome cap band - is deemed unusual. Ordinarily, cap bands aren't this wide.
Attached is picture of another Sonnet with chrome trim - though with normal narrower cap band - and which has a rhodium over 18k nib, carrying corporate advertising for the investment bankers Schroders, and dated 2004 (date code on the pen is A., which is for 1st quarter 2002 - I think).
Not easy to photograph some of these laque colours, but there's no denying they are attractive.
I've ten Sonnets now, all from the wild, of which four are flighters - so perhaps having 20 per cent with chrome trim is unusual - though fortunate.
Edited by PaulS, 07 June 2019 - 14:39.