Lot
454 
Victoria, 1905-12, 1d rose-pink, experimental black bar overprint, block of 8 with right selvage, o.g., never hinged, well centered, brilliant and fresh, Very Fine and choice. SG No. 139 var. Scott No. 219 var. Estimate $200 - 300.
These experimental overprints were prepared in October 1907 for experiments, or for use in stamp vending machines (Kellow, Stamps of Victoria, p. 295).