Goodness, that late ? That would have been Standard Edition, with no connectivity whatsoever. I think I returned to Hursley in June 87 and immediately signed up for the 1.2 Extended Edition Beta (with daily shipments of 35 diskette images arriving each morning). Certainly I have a Hertz receipt from Austin, dated early July. So I must have been a believer by then or they would not have let me in!
I have a niggly feeling that only MS shipped 1.0, IBM going for 1.1 with some degree of connectivity. But I could be wrong.