Looking at this piece, I can't think there's anyone who'd doubt that the No. was 128834 - but it's missing from Thompson etc., so I thought I'd check the records, and then tell everyone to add it to their list.
In the event, it turns out that 128834 is for a textile design of some sort, and it took a few attempts at possible alternatives to realize the No. is in fact 128884. Trouble is that however long I look at it, the fifth digit still looks like a '3' - so don't know whether this was an example of a mould with a genuinely incorrect No., or what - anyone else have experience of this particular Registration?
I haven't included a picture of the Register details - but can confirm that the page in question shows Class 4 (instead of Class 3) - and it seems that 128884 was included on the same day as 128882 and 128883 - so three Nos. allocated to Greener & Co. on the 17th of July 1889. What each number was Registering, I've no idea - design, shape etc.
Attached are my own two pix. and one from the Representations Register - the size of this dish/bowl is c.6.5" long.