2011 The 75th Anniversary of the YPFB Corporation
2011 The 75th Anniversary of the YPFB Corporation
South America
2019 Revalidation – Stamp of 2007 Overprinted Seal of the New Post Office
2019 Revalidation – Stamp of 2007 Overprinted Seal of the New Post Office
2019 Revalidation – Stamps of 2007 Overprinted Seal of the New Post Office
2019 Revalidation – Stamps of 2007 Overprinted Seal of the New Post Office
2019 Revalidation – Stamp of 2010 Overprinted Seal of the New Post Office
2019 Revalidation – Stamp of 2010 Overprinted Seal of the New Post Office
2019 Revalidation – Stamp of 2007 Overprinted Seal of the New Post Office
2019 Revalidation – Stamp of 2007 Overprinted Seal of the New Post Office
2018 Revalidation – Stamp of 2016 Overprinted Seal of the New Post Office
2018 Revalidation – Stamp of 2016 Overprinted Seal of the New Post Office