McVitie Weston valve collection, Mullard valve, type RG5-500
Main body of a Mullard valve, type RG5-500, (RMW/A210 - McVitie Weston number), by Mullard Limited.
Mullard valve, type RG5-500, broken into two parts, (RMW/A210 - McVitie Weston number), by Mullard Limited.
Main body of a Mullard valve, type RG5-500, (RMW/A210 - McVitie Weston number), by Mullard Limited.
Top cap of a Mullard valve, type RG5-500, (RMW/A210 - McVitie Weston number), by Mullard Limited.