I just want to thank everyone who has responded thus far to the "Home" survey. At this point we have data for 23 different machines carrying serial numbers below 10,000. Some of you have promised more data, and I'm looking forward to it! Some general patterns are emerging, and I hope to develop an interesting article from your efforts. Thanks again! One thing becomes obvious - as it has while studying other Edison models. The serial number indicates when the machine was ASSEMBLED, but not necessarily when the components were manufactured. Certain characteristics appear around a certain time, then sputter away, only to pop up again many numbers down the line. This strongly suggests that Edison manufactured parts for its phonographs in batches, inventoried them, and assembled them as needed. (In other words, man-hours for assembly/finishing were not invested until the machine was ordered by the jobber.) This practice resulted in some obsolescent or "old style" parts being buried beneath new batches, and unexpectedly surfacing later. Yet with a large enough sample, we'll be able to closely estimate when certain features of the "Home" were introduced. One characteristic I didn't ask about, but would like to track is the appearance of the Edison trademark decal somewhere between "Home" No. 1456 and No.2161. If you have a "Home" with a number between these, I'd be most interested in knowing if it carries the trademark decal. Since this decal was applied during the finishing process, the date of its appearance may be more pinpointable than other characteristics. I have no "Home" serial numbers between No.7420 and No.9199 - and none higher. If you can help fill these considerable gaps, I'd surely appreciate it. Thanks again to all for your generous assistance, and best wishes, George Paul