According to the Flxible production and delivery records, this is/was a Model B21-748 which means it is/was an end-loading Premier funeral coach. It was Flxible's body #16121 and was delivered to the Green Funeral Home in Pryor, Oklahoma on December 12, 1948. It was frame #14924238 and engine #51255517. The company sold, built and delivered a record 646 Buick-based professional cars in 1948 and of these 253 were straight funeral coaches like this one. The 1948 Flxible Premier funeral coach had a base list price of $4,998. So...there you go.