74b shade variations

[SMS88]

Just been looking at both the RW and the SF listings photos of red 74bs. The variation table only lists one red RW74b yet 2 shades, a bright red that matches F box art and a darker shade that is very close to common #70 Gritspreader dark red are shown in the pair of photos of red ones. I only own the dark one which i can see matches the #70 shade so are we missing a variation and do we have a crossover -the dark bodies being SF shade and the bright bodies being RW shade? What do folks think?

[motorman]

I need to master this Flickr whatsitcalled, great Pictures Mick!!