Dad gives coin, coin goes on scanner, pictures get taken, pictures get stacked, stacks get stitched. Easy peezy.
This here is an excellent application of stack+stitch. The leaf is just way too big for my capabilities, with too many Z heights (16?) and too large in breadth (11,515). Our 114 year old coin here in comparison is just 500 in breadth and 3 in height, and I even stretched that out a bit by going for 0.15 mm steps instead of 0.1 mm ("Wowee").
The final image is 40 megapixels or so and is pretty packed with information in my opinion. You can tell that this coin has lived a full life.