A collection of three brooches and a hairwork charm, late 19th/early 20th century

A collection of three brooches and a hairwork charm, late 19th/early 20th century, comprising: a stickpin, the top with the badge of the Grenadier Guards, set with cushion-shaped diamonds, mounted in gold, length 7.7cm; a brooch designed as conjoined hoops set with circular-cut diamonds and rubies, mounted in gold, length 2.2cm, dated 27.04.1905; a brooch of abstract geometric design set with blue and colourless pastes, length 3.8cm, stamped SCP, and a gold and hair work charm, modelled as a dragoon's helmet, composed of woven hairwork mounted in engraved gold, length 3.3cm