September 1989 flying on an Air Zimbabwe B707 from LGW to Harare. I was able to check in with BA at Victoria Station and use the BA lounge in the North Terminal which was then located on the lower ground floor. I returned from Harare to LHR in Club World on the upper deck of a BA 747-200 which had started its journey in Lilongwe. The seats on the upper deck were the ones which had been converted from economy seats. There was an Executive Club lounge at Harare but it admitted members only. In those days membership of the Executive Club was upon payment of a subscription (around £70 I think) and included travel insurance.