This is a fine example of the first obverse die variety for the 1914 poltina (flat striking with narrow rim).

Thanks to R.W. Julian's help over at the CoinPeople forum, I was able to recognize this variety
and won it in an eBay auction from a Canadian seller. After studying these pictures, I discovered that there is an easier way to recognize the difference IF one has access to both varieties: the hair at the crown on the obverse is markedly different!

The main differences to the other variety (“embossed striking with wider rim”) are indicated in the “detail” images.