FPR [ SAMPLE FOUND / Lasst mich ihn nur noch einmal küssen ] Milford Parish Church Easter 1966
This is not the exact exact sample but I have listened to a lot of versions of FPR [ O Jesu Christ ] and a lot of those versions had the same speed that I had set it to so it is a possible recreation of the sample that Kirby used, there is a high chance that this is the actual speed in unfound FPR