The Lincoln's 4-lamp system was not a true dual headlamp system. The upper lamps were the normal 7" two-beam lamp while the lower ones were 5.75" "road lamps" controlled by a toggle switch on the steering column. Thus they did not run against any state or provincial lighting laws as the headlamps were single units with independent road lamps. The one car I have always wondered about was the 1957 Nash. It had a dual headlamp system, which was also the first vertical placement of duals, but I have never seen or heard of a single headlamp arrangement. It is as if the market for 1957 Nash cars was so small AMC wrote off all states and provinces that did not allow the dual system. Ford also introduced a factory-installed dual system on the mid-year Mercury Turnpike Cruiser. In Canada, though, most of the provinces still had not approved the dual system so the Canadian-built Turnpike Cruiser, both Mercury and Monarch, had single headlamps. Same held true for Chrysler of Canada. If you wanted a Chryco product with dual headlamps you had to order an imported model. And that included all DeSoto models, Chrysler Windsor wagons, all New Yorkers. the 300-C and, of course, all Imperials. The Canadian DeSoto and Chrysler brochures displayed the dual headlamp system but said it was available only in provinces that allowed such a system and only on certain (imported) models. So the duals were definitely installed at the factory. Although a dealer conversion for a DeSoto or Chrysler would be feasible, for an Imperial it would have meant replacing the outer grille sections as well as the headlight bezels, etc. Not a cheap proposition. Bill Vancouver, BC ----- Original Message ----- From: Dave To: mailing-list@xxxxxxxxxxxxxxxx Sent: Wednesday, January 26, 2005 11:44 AM Subject: Re: IML: Single-Headlight fifty-sevens Sherwood Thanks for setting me straight on that. I had thought the dealer install was fact for years, as it was passed to me by another aficionado. I assume the same rule was implied for the Eldorado's and Lincolns? David C. Wilker Jr. USAF (RET) "I'm figuring out what's good for me, but only by a process of elimination" ----- Original Message ----- From: SherwoodK@xxxxxxx To: mailing-list@xxxxxxxxxxxxxxxx Sent: Wednesday, January 26, 2005 11:18 AM Subject: Re: IML: Single-Headlight fifty-sevens The single headlight cars were not retrofitted at the dealers. Cars with single headlights were shipped to states which allowed only one headlight. When those states realized they were hindering progress, the removed the single lamp requirement. In the meanwhile, Chrysler was building dual headlight cars like crazy (especially Imperials). I doubt you will find a single headlight car built after the mid-point of production. It would be interesting to find the highest serial numbered single headlight car. And, the parts book doesn't enlighten this discussion. Sherwood Kahlenberg ----------------- http://www.imperialclub.com ----------------- This message was sent to you by the Imperial Mailing List. Please reply to mailing-list@xxxxxxxxxxxxxxxx and your response will be shared with everyone. Private messages (and attachments) for the Administrators should be sent to webmaster@xxxxxxxxxxxxxxxx To UN-SUBSCRIBE, go to http://imperialclub.com/unsubscribe.htm