• WWII RPM Gauge MK IVB 6A/778. Early 1941 date


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    Here we have a 1941 dated RPM Gauge MK IVB or correctly referred to as an Electric Rev Indicator

    Encased in a slim metal body usually referred to as the Smith's body this unit has a stores reference 6A/778

    The needle moves but the instrument would need to be inspected by a suitably qualified person before been considered for flight use

    A nice early RPM gauge