I will endeavour to shed a bit more light on Mr Cricket's drawings in connection with the last of the 3, relating to " Replacement Fuel Injection " emblems.
I know for a fact that the emblems were hand made sometime prior to the drawing date. This was often the case with the 63 car and it was not just connected to S.O projects and or prototypes. Often in production, the two principal plant engineers at St Louis were instrumental in authorising engineering production changes as the cars were being built. These changes were often instigated ahead of agreement with the senior engineers at Warren, such was the autonomy of Corvette at St.Louis. Alterations in such cases would be drawn up at later dates to officially record the engineer's recommendations. Hence the term ECR - Engineering Change recommendations. During the 63 production year there were almost 650 engineering changes - a staggering amount even for a new car! Perhaps this underlines and supports the rush by Chevrolet to get the 63 car into production ahead of Ford's Mustang.
So with reference to the drawing - I have been told by more than one ex GM engineer of the day that there was rumour back in mid 62, a little ahead of the start of production of the 63 Corvette Sting Ray, that such was the difficulty in supplying reliable 360hp fuelie engines from Flint, considerations were discussed about delaying the introduction of the engine option for the new car until the issues could be solved. There is no doubt that the new and larger Rochester F.I. plenum chamber was giving a lot of problems with consistent fueling and as a consequence, giving huge potential supply problems for the Flint engine plant to supply engines to the factory when production got into full swing. I have talked regularly with another senior staff member who was at St.Louis at the time, and he tells me that while he was aware of the rumour, he had no actual evidence to support it. However, he could confirm the problems the plant were having with the 360 hp power plant.
There are also documents to suggest that the European show cars were destined to have 340hp L76 engines, however, due to the insistence of Mr Duntov the cars were in fact fitted with the L84 Fuelie units. He wanted the fastest possible Corvettes to be shown and road tested, however, if the cars were to be sold, then the fuel injection units were to be removed. Such was the reliability issue.
There is only one pre production 63 Corvette that uses the emblems. GM Styling were always looking for the best look and location of emblems. Another variation of a 63 Styling buck without crossed flags taken in the Styling dome at the Tech Centre. And another of a 63 wind tunnel car showing a GT Grand Tourismo emblem on the rear deck. There could well be others. Unfortunately I have no info to share on the later mid year car emblems.
and medical collages 
while I still can check the member database (I leave the committee in July) I looked but you're not listed as a member searching on your website name.