What is this close-up picture? (WotsThat: Leather wallet stitching (macro))

Question

What object is shown in this zoomed-in close-up photo?

CinnabarLine · Accepted Answer

Leather wallet stitching (macro). Traditional leather goods are often hand-sewn with a saddle stitch, using two needles on one waxed thread, which makes the seam far stronger than machine stitching because it won't unravel if a single stitch breaks.

Answer: Leather wallet stitching (macro)

More man made close-ups