Identification challenge!

Hello everyone

Here with another ID request please. This one still has me stumped after 4+ hours of research. Acquired at an estate sale a little while back, and put aside to deal with "later". It's now "later".
There is a small jug, saucer and side plate. The jug has "RD 198232" printed in green underside. The saucer and plate have the same number embossed underside. Had a squizz @thepotteries, and if that's a registered design number, then we're talking 1892. There are no other discernable maker's marks on any of the pieces.
If the piece is held to the light, it is quite translucent (can see finger shadows). Not sure what the particular pattern is called either.
Hoping the learned ones will inform. Thanks muchly...

 

I think the same set with different pattern, also unidentified.

https://www.ebay.co.uk/itm/184737419557

 

I "think" this is the same form as yours and I believe the number is the same. I saw a few that mentioned a SR along with the number but this is the first I found that "might" be a mark. See what you think. My best guess I think.

Samuel Radford?
https://www.thepotteries.org/allpotters/836.htm

https://www.pamono.eu/small-19th-century-jugs-great-britain-1890s-set-of-3

 

This set seems like yours I think. Identified as Radford but only a single photo.
https://www.thomsonroddick.com/cata...e-of-household-furnishings-to-includ-lot-263/