- Document: hand-drawn design sketch of a rectangular decorative panel / shutter.
- Main geometry:
  - Rectangular frame with diagonal grid forming diamond-shaped tiles.
  - Alternating hatched (shaded) diamonds.
  - Ornamental border detail at top-right.
  - Center horizontal dimension marked as "17 cm".
- Tile motifs (small drawings inside some diamonds): scallop shells, conch/spiral shell, small shell cluster, and a crab-like motif.
- External motif sketches:
  - Left: detailed crab drawing.
  - Right-top: two scallop shells.
  - Right-mid: conch shell with coral/detail.
- Visible handwritten labels (left side, pointing to layers/elements) — transcribed as seen (uncertain readings):
  - "cheve de fil blanchi" (uncertain)
  - "filet chêne foncé"
  - "motif maquette matin" (uncertain)
- Bottom handwritten line (uncertain transcription): "principe pour maquetter ... volet ..."