BRAZIL. Caixa de Estabilizacao. 500 Mil Reis, 1926. P-108s. Specimen. PCGS GSG Uncirculated 62 Details. Archival Pinholes, Hinge Glue, Writing in Pencil.Specimen. The first we have handled for the type in any form. A scarce piece from the Caixa de Estabilizacao series with only the 1000 Reis being a higher denomination.