Hi - Well, I heard back from Ron Dethlefson, and enclose his response below. And here are the pictures of Andy's machine, plus some additional oxidozed bronze hardware pix from Bruce Mercer: http://homepage.mac.com/pjfraser/phono/PhotoAlbum233.html the password is "pook2e" (no quotes). For large-scale versions of the pix, use the slideshow button, or single-click the individual shot in which you're interested. Cheers, Peter pjfraser at alamedanet.net Begin forwarded message: > From: ronald dethlefson <R2DETH at PACBELL.NET> > Date: June 23, 2007 9:53:26 AM PDT > To: Peter Fraser <pjfraser at mac.com> > Subject: Re: pictures of the early a-250 > > Nephew, > > Yes, the stop mechanism shown is the first one. It's the same as > on my A-250 #161. I've seen these mechanisms on #158 and #171. > They probably were on the first 200 A250s manufactured in late > 1912, according to Frow. A250s through #1200 were manufactured by > March 1913, again according to Frow. The sound vents in the sides > of the cabinets ended about #1200 too. I suspect that the stop > mechanism was changed due to some patent issue. So much of the > factory documentation was destroyed in the Dec. 1914 fire that the > only way to document changes in Model A pnonographs is to look at > the machines themselves. At least we now know that the first stop > mechanism, was in use into the 1400 range of serial numbers. > > One other Model A tidbit. I've never seen a Model A 250 numbered > lower than #109. This leads me to suspect that serial numbers > began with 100. The highest Model A 250 serial number I've ever > seen was in the mid-12,000 range of numbers. > > Regards, Uncle > On Jun 22, 2007, at 11:58 PM, Peter Fraser wrote: > >> <Early_A_250_levers.jpg> >> >> Early_A_250_levers >> >> >> <Later_A-250_controls.jpg> >> >> Later_A-250_controls >> >> >> <A_250_bedplate_detail.jpg> >> >> A_250_bedplate_detail >> >> >> -- Peter >> pjfraser at mac.com >