The 2 flight certificates are for the wife of the below mention Charles Dugan-Chapman.

BA acquired the Concorde in 1976. 

Note the the remarks entered (by Mrs. Dugan-Chapman on the back of 5 June certificate; that the dates are incorrect. Also the comment *"terrific flight" 

Also included (as shown) the BA Brochure and original grey leather style folder

CHARLES DUGAN-CHAPMAN, who has died aged 84, escaped from his native Poland in 1940 and flew with the RAF as a fighter and fighter-bomber pilot; after the war, starting from a garage in south-west London, he built up a plastics manufacturing business which he eventually sold for more than £30 million...