I have a T.K. Disco 12" of "American Generation" B/W "I Feel Disco Good" It's a test pressing ... the only info on the label is: Shelley Products Test Pressing TK D 97. Imprinted respectively on the run out grooves: TK D 97 A and TK D 97 B.
I have never seen a proper commercial release on the T.K. Label. I have a couple of different import copies as well, but the T.K. 12" was a surprise find while going thru some records in a garage sale.