RM,
Mine was to initially gain a "provisional licence" to be able to operate ASAP, with exams etc to come within 6 months. Not having my book stamped, a local "sourcing" of a suitable stamp and and accompanied by a management signature, all was good
Don't get me started on the medical...
However, to answer your question, as stated, CP, CFI, Checkie, someone with any authority would prob do, just make it look official
