Lot 72390 – 1878-79 Study on 8 exhibit pages of the important

1878-79 Study on 8 exhibit pages of the important transition period from Peru’s entry into the GPU, to its belated membership in the UPU, includes 5 GB-Peru mixed frankings, some other spectacular items among the 12 covers present incl. cover with bisect of 5c used as 2c (part of 27c franking; 1979 PFC), mixed condition but a hand-picked group for postal history exhibition, examine