Pioneer RT-1050 plays both with 15ips, half track. It also features plug and play head stacks, so switching from half track to quarter track is a breeze.
I know for personal experience that these were used in radio stations and recording studios back in the day. They are extremely robust and superb sounding. I believe Stereophile reviewed this deck and compared it to the Crown SX-822, with the Pioneer coming out on top.
it’s truly worth seeking out.
Norman