Just spotted this and thought I'd chip in.
For a RHD COB leafspring car as supplied via dealer for road use:
The ammeter is a Lucas BM4 ('back moulded' or 'Bakelite moulded', depending on who you talk to), pendant pointer with arrowhead, 30-0-30A.
The oil temp gauge is Smiths capillary, 40-140˚, part number at top of face.
The water temp gauge is Smiths capillary, 30-100˚, part number at top of face.
The fuel gauge is Smiths, pendant pointer, marked 'E-1/2-F' only on face, note baton style. Part number at top of face and no arrowhead on pointer.
The oil pressure gauge is Smiths mechanical, 0-100psi, part number at top of face.
The clock is as mentioned already, Zephyr/Zodiac, buttons at either top of bottom of bezel, both seen equally.
Speedometer and Tachometer are completely different from anything currently available aftermarket.
Speedometer is Smiths, 0-160mph, scalloped pressed face and fifties/sixties style 'drum' bossed pointer. Short metal trip knob exits at underside of casing and is loose under dash. Rivet retaining stop wire at zero is polished, not painted black. Part number below pointer boss - note position of face mounting screws.
Tachometer is Smiths, 0-100 rpm x100, scalloped pressed face and 'drum' boss to pointer, with extra pressed recess for red high beam warning light. Part number and gear ratio below pointer boss, and mounting screws close to pointer as in speedometer. Tachometer is cable-driven via a 4:1 gearbox off the back of the C40-T Lucas dynamo.
Note - both 'MADE IN UK' and 'MADE IN ENGLAND' seen on instruments with no particular pattern to this as far as I have seen.
Also note the coarse-grained slightly glossy leather used on non-padded aluminium dashboard panel - AC Cars did not use Connolly Bros hide.
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