I just bought this... help

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Where's @SpeedyPhill when you need him? 😁
I do recall somewhere that he's got a spreadsheet on all the Gemini and Apollo flown Speedys and their serials. Maybe he has one for the STS radial dialled ones too?
All we know is there were 4 prototypes (without NASA four digit serial) and 56 "Radial Dial" Alaska Project III delivered to NASA.
Barely enough as by 1980 NASA had 83 astronauts on "active flight" duty... by 1984 already 100 astronauts on "active flight" status...
These were used from STS-2 (Columbia November 1981) to STS-73 (Columbia November 1995)... It looks since 1996 these have been scattered but stayed at NASA although a couple went to the NASM in Washington D.C.
to be continued...