Auction # 2436 ARGENTINA: Special September auction - part 2

GJ.3A, 15c. PLATE B, dark blue, extremely rare used example with uncertain cancel (it looks genuine, but Solari has some doubts!) and for that reason it is offered at a very low start. It has a small thin on back, its front is excellent, good opportunity! (The catalog value is US$200 mint or US$500 used)