R. Wallace & Sons Identification Help

Hi - I found this piece at a thrift store and am having trouble confirming the pattern and age. It appears to match the “Royal Rose” pattern, but it has a different marker than every Royal Rose piece I’ve found online; most of which date from the 60s and have “Wallace” printed on the back. My piece has the R W “Stag” S. On the left side it says “Sterling” and on the right it’s either 2000 or 1000 (hard to make out). Any help in pattern and approximate age would be greatly appreciated. Thank you!