| Uruguay, Sc 23 var, 12c Blue ... | |
| Uruguay, Sc 23 var, 12c Blue horizontal BISECT cover from Porongos, w/ Holcombe - Sold on eBay Dec 06, 2021 for $895.00 | |
| Top half of horizontal bisect tied by blue Porongos oval cancel on ca. 1864/65 folded cover to Montevideo, missing small piece of top flap, signed Ciardi and with 1991 Holcombe certificate, less than five bisect covers are thought to exist.... | |