MK Old Style Single Grid Switch Yoke Earth Terminal also fits metal socket boxes

CRABTREE Rockergrid Grid Switch Accessories - Switches Plates Grid Yokes Boxes

OLD STYLE MK 6 Gang Metal Cover Plate Grid Switch System 3466BMA Bronze

MEM Spectra - M802 (F8201) - 2 Module Grid Switch Plate New

Mk 2G 2 Gang Way Metal Clad Cover Front Plate Grid Vintage Old Style & Screws

Vintage Crabtree Old Style Grid "Rockergrid" Switch 1 way 5 amp

MK Grid/Metalclad Plus - K3491 ALM - 1 Module Switch Cover Plate Unused

OLD STYLE MK 8 Gang Metal Cover Plate Grid Switch System 3438BMA Bronze