Wonderful life - Black

I have several singles of Black's 'Wonderful life', but when I found this one online I was a bit puzzled. The sleeve looked a bit generic and it was a Czechian pressing. Chechoslovakia - as it was known back then - wasn't known for its expansive record industry, and I wondered how this single ended up being released over there.

The mystery became even bigger after I received the single, as the B-side, 'Everything's coming up roses', sounds a bit different from the 'regular' single version. Listen to the intro and you'll know what I mean.

My collection: 7" single no. 5891
Found: Discogs.com, received January 31, 2018
Cost: 2 euro
Tracks: 'Wonderful life' / 'Everything's coming up roses'