They are charming documents. The altitude and speed subtle reminders as to how different air travel is now. Just imagine the noise!
They also reminded me that up until the 1980's it was common to have a route map passed through the cabin on flights. Indeed deep in my loft is a Pan Am 747SP "polar" route map LHR-SFO which my father secured for me, perhaps in the late 1970's, as he often jetted off to the US at that time, and a Dan-Air LGW-KGS map, which as a spotty plane mad teenager, did not make it further than my seat! My log notes it was B727-212 G-BHVT on 10.09.80