Lynn_M Between 1947 (build date) and 1952 (the year it was registered with Capital Airlines), if known. Here's the link: https://airport-data.com/aircraft/N90607.html
Helicopterfriend PH-TCD KLM Royal Dutch Airlines (First owner) N90607 Capital Airlines G-ANUV BOAC N9380F taloa - Transocean Alumni Association HL-102 KNA Korean National Airlines OE-IFE AEROTRANSPORT Broken Up @ AMS 1966