G
Geordie Spark
Have the same for my father who was a Tool Maker. He mislaid/lost his C&G Cert's along the way, it took me nearly two years (a good few years back ) getting copies of his cert's from the C&G Institute. Purely because of bone idleness of the staff that couldn't be bothered searching the archives, even with supplying them with exact dates taken directly from his indenture papers. Kicked up such a stink with the management side, that they waived the charges along with a written apology....
Ah yes ... Toolmaking is highly skilled - like my trade.
Half a Thou is a big tolerance and five Thou is massive and we can work to those tolerances with hand tools. (or at least I ustercould )