Royal Swaziland Police brass button circa 1965-72

Royal Swaziland Police (later Royal Eswatini Police) 23mm brass tunic button.

Queen Elizabeth II’s crown above crossed spears/assegais

“SP” (Swaziland Police) in the centre roundel

 A banner reading “Pro Rege Lege Et Grege” — “For King, Law and People”

Dating: This version, with the Queen’s Crown, was used 1965–1972 — the run-up to and just after Swaziland’s independence from Britain in 1968. King Sobhuza II kept the force’s colonial-era badge design for a few years post-independence before it was updated (and later renamed Royal Eswatini Police Service after the country’s 2018 name change).

A bit of context on the motto: it’s a variant of the classic British police motto “Pro Lege” (for the law), but with “Rege” (king) and “Grege” (the people/flock) added — fitting for a police force answering directly to the monarch, since Swaziland/Eswatini remains one of the world’s last absolute monarchies and the police chain of command still runs to the king as commander-in-chief.

The reverse shank matches a standard sew-through tunic button of that era, and the 23mm size is right for a large coat/tunic button rather than a smaller cuff button.