Not sure what PAM stands for, but I've only seen written that the very first contract purchase by the War Dept (prior to Lend-Lease of course) was direct with Auto-Ordnance and they were all Savage made M1928 guns...?
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I bet its not even an A1, all the early pre-lend lease guns bought commercially by UK were M1928 with no A or A1 suffix.
The Frenchorder was never delivered, as France had surrendered before they were delivered and they were diverted to the UK from what I recall reading. Maybe some of these were Colt '21's...?