Daf Lewis might be able to help you. He is active on basschat.co.uk and sometimes also here on talkass.com.
I too think these might be Golden Slaps, but I only know three of the Innovation sets and not this one.
There are metal wound jazz and orchestra strings (140H, 140B) and synthetic would strings with black and transparent (and coloured?) outer windings.
If the strings are rather thick, I guess these are Golden Slaps.
There is not much but a little bit of information at their homepage http://innovationstrings.co.uk/