Need help with 7" release from the early 70s

Hi there,

For the past few years, I have been sitting on a bunch of 7" promo releases, mostly from the years 1973-1974.
I finally decided to make a complete list, because I'd like to sell the lot, but there are a few I'm not able to identify.

For example, this test pressing:
https://ibb.co/86Bwc5h
https://ibb.co/zrhD1X3

Do you have any idea what it is?

Thanks for your help!

Have you tried looking up the matrix numbers?

Oh, right! I should have thought of that.
"DS-0075" and "DS-0076".

http://www.aninacollins.com/release/10300723-%E3%82%BF%E3%83%9F%E3%83%BC-%E5%B9%BB%E3%81%AE%E5%A5%B3
Thanks a lot!