Thanks, Rich for sharing this. So at this point, we know that the early style of start / stop lever was carried at least through your serial number SM-3435, and discontinued by #SM-12033 or earlier. This goes for the model A-250. Others I expect would have this appearing in somewhat different serial number sets, but at this point, I have no feedback from anyone that their other model A series DD phonographs have this stop (though I expect that some would have it). Andy On Jun 22, 2007, at 3:43 PM, Rich wrote: > OK, you will ove this one. The machine serial number plate is SM > 3435 and the mecanism bedplate is > 3435 A1 and the stop is identical to the one you have pictured. > The case is oak. I can not get at the > back of the machine without moving several others so I can not tell > you what the label on the back door > reads. > > I would mention this though. I have seen altogether too much > evidence to show that Edison numbered > the entire machine when it was assembled for sale and not when the > individual parts were produced. > > I also have a B-250 that I will look at later this evening after I > get everything off of the top so I can open > it. > > > On Fri, 22 Jun 2007 15:16:25 -0600, Andrew Baron wrote: > >> The lever with the knob on it can be used to both release as well as >> engage the brake pad. The other lever that contacts the adjustable >> finger on the lift post is small and not meant to be touched by the >> user. > > >