Very early/pre-IMF speakers?

[Tony L]

These are rather interesting, though the timeline confuses me. The description suggests they are pre-IMF, though I’m pretty sure IMF pre-existed the Ditton 66 (these have the Celestion dome mid): https://www.ebay.co.uk/itm/40412418...d=link&campid=5338728743&toolid=20001&mkevt=1

Anyone know anything about Transmission Electronics? Other than the Ditton 66 mid it looks like a Kef T27 and B139 with I assume the unpowered ABR version of the 139 below.

 

[Space is the Place]

Looking at them, you can definitely see where Pete Thomas and associates at PMC got their inspiration from.

https://pmc-speakers.com/pmc-audio-museum