The Holy Grail? In the prewar Flyer category there are many things that could be considered a "Holy Grail" to collectors. For instance the 1907 3 Window Chicago Cars with unpunched windows
Or the 1910 cast iron trolley
The Imperial Limited Parlor Car c. 1915
The 1916 Caboose that uses the B&O boxcar body
The 1918 Caboose that says "Caboose"
Any of the Lithographed 9.5 Inch Freight Cars
The 1927 20th Anniversary Clock
The 1928 3211 Caboose with fancy Handrails (OK so mine is restored, I could not find a nice original and settled for a $20 original needing restoration)
The Original 1930 Flyer Catalog Cover Artwork
Which was acquired with a large photographic image of an artist's rendition of the Halsted Street Factory
The Streamliners, especially red, blue, yellow, and chrome with 6 wheel trucks
The Mack's Junction Water Tower
But I would have to say that for me the Holy Grail items are finding those items that you never knew existed, such as the Macks Junction 91 Station Platform
The 1915 Continental Flyer Line Parlor Car
The American Flyer Zephyr that was engraved and presented to the President of the Chicago, Burlington, & Quincy RR (Currently on display at the Chicago History Museum)
Or making an important discovery relating to W.O. Coleman Sr. and the Halsted Street Factory (Sorry guys you will have to wait until that article is published in an upcoming issue of the TCA Quarterly).
So my Holy Grail is the next undiscovered and unusual item.
NWL