[HayZee518]

shouldn't really be a mystery with knob n tube wiring. even if the wires are the same color. at one box there has to be a hot wire. at the other there has to be a load wire. the other two are just the "travelers" with knob n tube there is no ground so finding the hot is a little more challenging. you can find the hot with a neon light tester and multimeter. shut off the breaker or open the fuse that serves those switches. take off both switches and leave the wires exposed. now re-energize the circuit. with your neon light grab hold of one prod with your fingers, now making sure you are not grounded, touch the metal prod to each of the three wires in one box and then the other. when you hit the hot wire, one side of the neon light will glow ever so slightly (orange) you won't feel a shock. this box is your hot box. now mark the hot with a piece of tape. splice the three together with a wirenut temporarily and go to the other box. now similarily with the test light touch each wire. two of the three should show hot. mark these - these will be your travelers. the one that's left is the load terminal to your light. now go back to the first box. de-energize the circuit and take apart the spliced wires. on a three way switch one screw is marked with an odd color, the hot goes here. the two unmarked travelers go on the other two screws. up at the other box, the two marked wires go on the bottom two screws and the load goes on the odd screw up here. re-energize the circuit and it should work as you desire.