BRADY Rule
The best piece of planning kit I ever used, but a bit flimsy. You do need to take care of them
Had all the circles, timings/speeds, cutouts you need for FJ LL Ops and fitted in a flying suit pocket
Not sure of address, but someone will have it
I got mine directly from Mr (ex Valley instructor Roger?) Brady & they were about £20 a throw 10 years ago
They could be bought in 1s or 2s, so your 'small quantities' should be ideal
Looking for the contact details