Guatemala, 1918, 1.50p Cabrera, Artwork ex American Banknote Archive. Photographic records for 1.50p Pres. Estrada Cabrera issue with 2 unadopted designs + 1 similar to issued stamp but lacking imprint & "Cabrero" misspelling, all numbered & dated, also large sunken die proof showing the same misspelling, Very Fine. Estimate  $150 - 200. $0 (Image)