Two unidentified portraits in our family collection have led to a discussion about facial outlines. The photographs were taken from different angles, with only one showing a straight view. I want to describe visible proportions without treating a face category as proof of identity. Separate notes about the forehead, cheekbones and chin would probably be more useful than one label. I have bookmarked face shape calculator as a possible comparison reference. I would appreciate advice about separating an outline observation from uncertainty about the original photograph. A separate crop could make comparison easier, provided the untouched photographs remain available beside it. What would you include in a brief record of these visible outline differences? I would rather leave a category unresolved than make the catalogue sound more certain than it is. The notes should remain understandable without access to our earlier conversation.