I came across the following information from another site which has really very little to do with what this forum is all about; however I felt, because of its RAF mention, that it might be of interest to those WWII points of interest. Anyway, here is what I found:

"It was a very large premises, a 2000 sq. ft. shop, big workshops, machine shops, huge stores etc., It used to be an RAF fighter command headquarters and command centre for Scotland during WW2 in the RAF's fight against the Luftwaffe and was built like an air raid shelter, which to a certain extent it was,".

The foregoing is with respect to a bicycle business on the Alexandia Parade in Glasgwo in the 80's or so, I'm not sure. Actually it was the premises of the "Flying Scot" bicycle shop.

There used to be a web site with all the details of the Flying Scot and Rattrays, but it's all gone now, and doesn't seem to have been resurrected or taken over by anyone else.

However, I have sneaky ways, so...

The need to move from Murray Street was unavoidable, and came on the back of a lean period, when the car became the means for folk to get away at the weekend. The effect on the company and its finances was devastating. After a short period at 86/88 Dalhousie St, itself later subject to a compulsory purchase order, the company leased smaller and less suitable premises at 261 Alexandra Parade, at which they remained until closure.

In 1981, at a cycle trade show in Harrogate, Evan Ritchie was approached by a senior figure at Puch (GB) Ltd, Peter Bolton, who said that they were keen to off-load Rattrays. Mr. Ritchie agreed to take over the business and the lease of the Alexandra Parade premises. "It was a very large premises, a 2000 sq. ft. shop, big workshops, machine shops, huge stores etc., It used to be an RAF fighter command headquarters and command centre for Scotland during WW2 in the RAF's fight against the Luftwaffe and was built like an air raid shelter, which to a certain extent it was," said Mr. Ritchie.

In 1983, Rattrays closed for good.

I've got a pic from the late 1960s showing 267 Alexandra Parade, taken from the west and maybe even beside 261 - the building could well be a factory, well, it obviously is, but it is a conventionally built brick factory, and could never be mistaken for an air raid shelter.

I haven't come across any other references to a Sector Operations Room in the middle of Glasgow, which is what this would surely have been if the story is correct, but will keep looking now that I'm aware.

Seems a bad site if it was there, putting such a target in a city, in the middle of factories, in the middle of a world war, asking for trouble!

I too was very doubtful about there having been a Sector Operations Room on the Alexandria Parade. i actually visited this building and don't recall anything at all that would have suggested a military building. It's possible the building was an engineering workshop involved in war work of some kind and this could easily have led to rumours.