Greenland Q4, Q6a, Q7, Q8 Parcel Post Pakke-Porto Polar Bear. FACIT P13-P16 MNH. Flawless XF stamps with impecable centering and no faults. Cat value $225
This is the 1937 Shultz printing set of 4 values, all with perf 10.75 listed on FACIT as P13-P16, (25000 issued).