I agree that Roy's pix don't appear to show the pointed tip to the bottom of each upright, but presumably Roy would be able to confirm whether that is simply an optical illusion or a reality.
As you say, Paul, this Sowerby design registration group for 14 May 1878 - Parcel 9 covers RDs 321368 to 321379 inclusive. Assuming that Cottle's correlations between RDs and pattern numbers are correct, the only reference photos that I have of actual examples of pieces from this group are now for :
RD 321369; pattern 1397 sugar box
RD 321371; pattern 1304 basket
RD 321373; pattern 1302 tripod vase
RD 321374; pattern 1301 two-handled basket
RD 321376; pattern 1307 trefoil vase
and, thanks to you, the single confirmatory Kew design representation drawing I now have is for RD 321373.
That leaves 11 RDs from the parcel group for which I don't have the Kew drawings, I'm afraid, Paul, so sight of any or all of them would be much appreciated in the goodness of time.
It seems like a terrific imposition, but If you do manage to post any, then a separate thread covering the whole RD 321268-321379 group may be the most appropriate way (and almost certainly the easiest way to find the info again when searched for), plus the fact that matching additional reference photos can be added to the tread as a permanent record on the GMB.
Fred.