
Oatflake Cake - found in a auction lot. "Best" according to the card.
"Oatflake" instead of oatmeal. "Sweet milk" instead of just milk. Sweet milk was just regular milk, you had to say so because buttermilk was common enough in baking that "milk" alone was ambiguous. I've seen that phrasing on maybe a dozen cards now, and they all seem to be pre-1950s.
At the top, underlined once 'Best'.
EDIT! Apologies - cookies not cake! I hadnt had any coffee!