A Mullard Type MUS 271 3-valve receiver in brown bakelite case --10½in. (26.5cm) long; an Ekco Type U29 receiver in black bakelite case with cream bakelite speaker grille --12in.(30.5cm) long; and an Ultra 3-valve in brown bakelite case with cream bakelite speaker grille and tuning knobs --11½in.(29cm) long (3)