Another way to check is to look at the blank area on the disc next to the label. You'll see a matrix number, something like 1423456. If it stands alone, it's acoustic. If it's preceded with a circled W it's electric. Compare any Harmony with any Columbia from the period to see--and hear--trhe difference. Dick Aaron Z Snyder <[log in to unmask]> Sent by: Association for Recorded Sound Discussion List <[log in to unmask]> 03/20/2004 01:02 PM Please respond to Association for Recorded Sound Discussion List To: [log in to unmask] cc: Subject: Re: [ARSCLIST] Is this 1929 Harmony Recording Acoustic? (Harmony 308H) Steven C Barr wrote: > Since my computer's sound is far from high-fidelity, it's hard to tell for > exact sure...but > it sounds to me like most 1925-30 Harmony's, which are acoustic. The only > way to be sure is > to compare it audibly with a Columbia of the same period. > Steven C. Barr It's acoustic for sure, although a darned good-sounding one. The giveaway is the complete lack of deep bass. I'm sure a spectral analysis (which I haven't done yet) will confirm it. (I don't know what this recording has to do with Henry Ford's insincere retraction, unless Mr Friedman was simply giving some historical perspective.) Aaron Z