Adderley Creamer Sugar Set Fine Bone China England Thistle Pattern Scalloped

This creamer and sugar bowl set belonged to my mother. It sat in her china cabinet until I packed it in a box. This Adderley fine bone china set is beautiful. I see no chips or cracks. I believe the flower/pattern is Thistle, though the flower looks somewhat smaller than other similar patters I have found on the internet. If I am incorrect, hoping that an expert will set me straight. The pieces are slightly scalloped and the edges (except for the base of the creamer) have a gold trim. The base of the sugar bowl has some letters/numbers. It is difficult to read - even blown up. It says either 19549 or H549. Please your own eyes and judgmet what it actually says. Please look at all the photos and ask any questions before you buy. I try to describe everything the best I can. Thanks for stopping by and taking a look.