Certainly both Veglia and Smiths in either green globe or NVT logo (wiggly worm) style instruments were used from 1973-on as a look in any 73-on Commando parts book (inc. 1975) will confirm.
The clock holders became deeper for 1973-on models in order that Veglia instruments could be used.
According to the parts lists Roadsters would normally have been fitted with Smiths instruments and Interstates with Veglias but I'm not sure this was always the case.
Some while ago I attempted to compile a list of the known Commando Smiths and Veglia instrument types and their numbers with the help of the forum members.
I would like to try (with the assistance of the forum) to compile a list of the different Smiths and Veglia speedo and tacho types used on Commandos over the years as there seems to have been many changes throughout the production period and a definitive list could be useful? I already have...
www.accessnorton.com
There are still a few numbers missing:
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SMITHS SPEEDOMETERS
MPH speedos are normally marked; *1000 turns = 1 Mile*
SSM 3001/02 150 MPH (1968-70) Solid Green Spot
SSM-3001/02A 150 MPH (19??) Green Globe Logo (this could be a later replacement part?)
SSM 3001/09 150 MPH (1971-74) Green Globe
SSM 3001/10 240 KPH 600 turns (1972) [1971-74?] Green Globe
SSM 4003/00 150 MPH + Trip meter (1975-on) NVT
SSM 4003/01 240 KPH 600 turns + Trip NVT known to be used on Triumph 750 Bonneville/Tiger 75/76. Possibly also Commando 850 MkIII ?
SMITHS TACHOMETERS 4:1
RSM 3003/00 9k RPM (1968-70) Solid Green Spot
RSM 3003/12 9k RPM (Commando 'S' 1970) Solid Green Spot?
RSM 3003/15 9k RPM (1971-74) Green Globe
RSM 3003/(21?) 10k RPM (1975-on) NVT
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VEGLIA SPEEDOMETERS also used in pairs as well as Smiths types but only fit the deeper (black) instrument housings used 1973-on.
1000 turns = 1 Mile
09190919900 (1973-74) 150 MPH + Trip meter, Green Globe and 'Norton'
0919 091 9911 150 MPH + Trip meter (1975) NVT
0919 090 9911 240 K/MH + Trip meter (1975) NVT
VEGLIA TACHOMETERS 4:1
09200909900 9k (1973-74) Green Globe and 'Norton'
0920 090 9911 10k (1975) NVT
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