Hi George ~ Thanks for sharing that the Form 632 on your A-80 has no date. I have an A-200 that apparently has the same undated form pasted to the inside of the rear cabinet door (same location as on my early A-250). My later A-250, has a different Form 632 located in a different location; on the floor of the horn compartment near the front left, with a later form date of 8-20-14. That makes three known versions of Form 632, and two locations where the form may be found. On the A-80, is it on the bottom of the cabinet or on the back or inside the horn compartment? I appreciate your observation of how long it might take for an updated dataplate to appear, based on how quickly inventories moved. This stands to reason and I hadn't thought of it. Plates would not have been changed out on completed machines, so a slower moving model could be several months or even years in inventory and yet carry an outdated edition of the dataplate. In this case, the date that a particular machine was sold can be very much later than when it was made. Between the Form 632 and the dataplates, we have two possible date indicators for manufacture, and I would think that both can serve to narrow down when a machine was made, regardless of when it was first sold to the public. Best, Andy On Jun 22, 2007, at 3:10 PM, gpaul2000 at aol.com wrote: > > Andy, > Looks like you're narrowing the window of possibility for your > machine's manufacture - and the clues were right there all along!? > I don't have a sense of how long it took for new patent dates to > appear on Edison dataplates, as this would imply that newly- > patented features appeared on those particular machines.? I suspect > that the time varied, depending on whether the model in question > was a faster-selling one (such as the "A-250") or slow-selling one > (such as the "A-150") with larger inventories of unsold machines.? > In any event, based on the evidence you've discovered today, I'd > amend my earlier assessment to "late 1912/early 1913" for your > example.? Here's a puzzler: you state that Form 632 (pasted to your > "A-250") is dated 11/20/12.? I have Form 632 pasted to an "A-80" > and it has NO DATE ON IT.? What do you suppose that means?? Those > fellows at West Orange didn't make this easy for us, did they? > > George Paul > > > > > ______________________________________________________________________ > __ > AOL now offers free email to everyone. Find out more about what's > free from AOL at AOL.com. > _______________________________________________ > Phono-L mailing list > http://phono-l.oldcrank.org