T228 transformer? What is this?

[SuperbassT]

Anybody who knows what transformer this is?
I'ts a power transformer with the voltage selector mounted on the bell.
I assume its 100w?
Is it a Drake? The T228 lettering seems like the same font as Drake used.
What amp were these used on?

Cheers!

<a href="https://imgbb.com/"><img src="https://i.ibb.co/hK9xsVp/T228-MAINS-TRANSFORMER-edit-220366153493456.jpg" alt="T228-MAINS-TRANSFORMER-edit-220366153493456" border="0"></a>

 

[coffeecupman]

Dagnall according to this listing. Although Marshall is mentioned I couldn't find any instance of anyone saying they ever used them.

Vintage 1960s Dagnall Mains T228 Transformer 100w Amplifier *RARE* Marshall etc | eBay

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