speedo and tach i.d.

["Ed Woods" <fogbro1@comcast.net>]

List,

I have two pairs of instruments, speedo and tach.

I'm sure the first pair came from a TR3: SN6307-04 and RN1402/09. The cases on
these instruments are round.

I'm trying to identify the second pair. Are they from a late TR3 or from a
TR4? The speedo is SN5319/06, the tach RN1411/00. The rear of the case
(housing) is rectangular.

Any idea of what's what?

Thanks,

Ed Woods