Sorry guys I already have two. I will say the one on the passangers side is totally usless to the driver....it is there just for looks and to balance the car out.
I just checked the listing and they sold for $800...now that is ridiculous!
I'm guessing mid 20's. It was in a pile of stuff that also had a 37 glove box clock and afew other things. Whole pile for $35, sold the clock on e-bay and it flopped only selling for $42. But still have some of the other things left. Rod
In 1954 there was no hood for the accessory side view mirror. It was 5-sided and attached with an Allen key to a base. They are hard to come by. They are similar in shape to the “Custom Spotlight and Mirror”. (One could also get a regular round Mercury spotlight (2 sizes) with or without an attached mirror.) If positioned correctly the side view mirrors can be used. Here is a pic from the original Sales brochure showing the Custom Spotlight and the Side View Mirror (strangely upside down to how it is usually used). The Custom Spotlight was side specific and finding a right (passenger’s) side one is almost impossible. http://www.oldcarbrochures.com/static/NA/Mercury/1954_Mercury/1954_Mercury_Brochure/1954%20Mercury-26-27.jpg
The part number looks to be B9MB-17687-A. The generic part number is 17687. The suffix “A” may mean nothing unless there also exits a “B” or “C”, etc. The suffix usually indicates minor changes to the base part number (if they exist). The prefix “B9MB” tells more. The “B” means the 1950's (“C” would be the 1960's and so on). The “9” means the 9th year of that decade. The “M'” means the Mercury line. The “B” means a body part.
So it is a 1959 side view mirror for a Mercury.
(Not all Ford part numbers for all years follow this system of designation. Also accessories often did not have Ford part numbers on them: they were often sub-contracted to other suppliers. An example would be Spotlights from Unity.)