Originally Posted by
CyclesMakaron
Number holder is an option available for everyone (manufacturer's designation: FF = Foto Finish, you can find it in EMC catalogues)
P is the code mark of the employee responsible for careful "smoothing" of the frame before chrome plating and painting - it was about quality control, in case of problems it was known who would not get dessert as punishment...
Thanks, I'm going to get it serviced and I'll get the fork removed to see if it has a card on the steerer, hopefully that will reveal some more hostory.