Large Vintage Art Deco Style Sterling Silver Nurses Buckle By John Rose. The heavyweight buckle is beautifully designed and crafted. The buckle measures approx 7.5 long and 6.3 cm across. It weighs 53.8 grams. It is fully and crisply hallmarked with the makers mark "JR" for John Rose, the lion passant, the Birmingham assay mark and date letter "R" for 1966. It is in really excellent condition.