The lid on this machine is from an SE 310 …
The lid slots into the upper rear vents of the machine and is secured by spring-loaded clips at the front. Apparently, the lid was an optional extra on all subsequent TA 3XX models, which had a soft vinyl cover as standard.
TA’s corporate colour (orange) hasn’t changed and is still in use today …
E.T.ZONE 
Shamed into doing a proper typecast (opted for Elite Modern 10/12) ;D
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That’s a nice typeface, I’m curious why you didn’t post it as a typecast 😀
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