ANTIQUE ALTIMETER BAROMETER GEBRs CAMINADA ROTTERDAM. Brass with rotating outer scale marked 0-36. Inner scale from 52-79, labeled Barometre (PBHN in a circle) Holosterique, Altimetrique Ccompense. Made by Gebrs Caminada, Rotterdam. The diameter is 4.75 inches by 2 inches high. I assume the model Altimetrique refers to altimeter. It has a very dark [...]