The larger button on the left. It's hard to tell the eagle detail. Would it be WW1 or 2?
It does have some black on it, the back tie hard to read for sureBoth buttons are the 1910-1927 style with the rounded rim. The smaller button has remnants of the black finish and would date 1910-1923. From 1910-1917 buttons were gilt or black, black only from 1917-1923 and gilt thereafter. From 1902 -1910 they did not have a rim. From 1910-1927 they had a rounded rim and 1927 to present have a flatter more angular rim. I can't tell if the larger button has any black on it. Can you read the backmarks?View attachment 2205743