A Belgian letter with etching

Signatures &amp; Marks <svg width="14" height="14" viewBox="0 0 14 14" fill="none" stroke="currentColor" stroke-width="1.5" style="transform: rotate(0); transition: transform 0.2s;">

Provenance <svg width="14" height="14" viewBox="0 0 14 14" fill="none" stroke="currentColor" stroke-width="1.5" style="transform: rotate(0); transition: transform 0.2s;">