Anyone recognize these Petcocks? The Petcocks on my mid-1948 Rapide are clearly not T28 "Push-Pull" style (Ewarts?) taps, and I don't know what the T28/1 Lever style look like. Unless these are them (with a lever on the front and a small spring on the back)? I imagine these are something installed by a prior (pre-1973) owner when the old taps were hopelessly leaky, but confirmation would be nice before I replace them. Thank you.