Hi , Whether or not there ever was a written offer to Fokker from the UK governement " WE " will never know from the UK national archives ....Like so many things in this countrys history , and especially in relatively recent years or so ,up to the present day ; its details , will have been deemed to have "... not been in the public interest " to know ....... "Limited "details are unlikely to be released from secret clasification for another 200 years or so !
JM