By analyzing the attributes of 1967 G.T. company cars and engineering vehicles listed on original Shelby American documents, including the March 31, 1967 Vehicle Tax Register, the July 31, 1967 Fixed Asset Ledger and volume 48 (page 54) of The Shelby American, we were able to cross-reference and populate additional information about the company cars, including the corresponding California Asset Number (Decals on Windshield). All the handwritten notes refer to the company cars by this Number (which is not the VIN), including the Ionia Move Planning documents (Jobs Yet to be Completed in California, Disposal of Prototypes and Vehicles Remaining in California). Ionia Inventory Numbers for a few cars were also found on the 1969 Shelby Automotive Engineering Car List document. The SAAC Shelby 2011 World Registry also provided additional facts.
The ultimate goal of this exercise would be to create a comprehensive cross-reference of each company car by both VIN and Asset Number.
Table: https://docs.google.com/spreadsheets/d/1TpVk23GGlsREuGHcHWic71b_K8nhvEzmJobNym39ZLo/edit?usp=sharing
Observations:
The decal numbers are NOT chronological to the car's VIN nor to the car's completion date(s). This leads us to believe that the asset numbers weren't assigned as each car entered company car duty, but rather all (or almost all) numbers were assigned at once -- on a particular date, such as when FoMoCo acquired Shelby American and/or formed the new Shelby Automotive Co. and/or performed a physical inventory of the assets (company cars and completed retail cars) for accounting purposes...
In the meantime, when looking at the list:
CC# VIN# FSJ Built SAI Comp* Notes/Observation
060 ???? ???????? ???????? Referenced in a letter from ACSCO. Might be #0121
061 0131 11/08/66 12/07/66 Engineering - Coupe. Lowest company car number found on any SAI document
062 0139 11/21/66 12/07/66 Engineering - Convertible
064 0463 01/03/67 02/02/67 HOR / Engineering - AC Cooling Tests
065 0522 01/04/67 01/30/67 HOR / Engineering - first GT350 4-speed AC car ordered
066 0544 01/11/67 02/09/67 Goodyear Tire tests - 427 Lightweight Engine
073 2381 05/05/67 06/10/67 HOR / Engineering car
074 2484 05/12/67 07/21/67 Of those found, this is the latest SJ and SAI built car (but not the highest CC number)
105 0578 01/12/67 02/16/67 Company Car - Lew Spencer
115 1338 01/30/67 04/13/67 Highest company car number found (though not the latest SAI completion date)
Our theory is that FoMoCo took over SAI in the spring of 1967, circa May 1, 1967. It is possible that the window decals were assigned to the company cars (fixed assets) at or about the same time as the "Z" stamps started getting added to the VIN plates of retail units (inventory).
It's also worth noting that the font used for the numbers on the windshield asset number decals appears to be the same as that used on the Continuation Invoices. It's very similar to Futura.
Updates:
2019-05-02 - #0544, one of three factory 427-equipped cars, has been identified as company car '066' thanks to the detective work of Kieth, Anthony, and Rich.
2020-10-25 - #0578 is our best guess on Company Car 105 - details below in this thread.