Besides the "hose" what other indicators are there that it's a 577-R and not a 70? The "hose" that is shown in the picture isn't a hose it's an electric cable. Look at the nozzle.... I converted it to a fully functioning Electric Vehicle Charge Station, so now it refuels vehicles again. The original hose connection was 3/4" NPT and not 1", so it doesn't seem it was a high flow pump. The pump also had a computing veeder root, but that could have been swapped out in it's lifetime from a non computing computer. I'll post some more photos tomorrow, showing more detail but I don't know if it will help identify it.