Early Mac Concerts in the UK

[HoraceG]

Hi Guys,

Can anyone point me to any On-Line resources that might be able to list dates and locations of early Mac concerts in the UK?

I remember The Mac doing a gig at GRAYS (THURROCK, ESSEX, UK) in the late sixties / early seventies and am trying to get an actual date for this.

Any help / pointers would be appreciated,

Regards

HoraceG