It's a round-shouldered, possibly mid-green -- it's hard to say in black and white -- tweed-effect, slightly oversized, cheap, generic, lightweight coat, probably bought in 1950.
If the cake is a little round-shouldered, cut the almond paste a little larger; pull away the extra bits and keep for later to make hearts or holly leaves.
The presence of ice belts, reticulated ice interlayers, and wide, round-shouldered ice wedges indicate that permafrost formed in these sediments as they accumulated.