Just looking at them, they're probably exactly the same mic as the Nady CM-90, but with a roll-off switch added, which would also make them basically a shiny-case version of my Astatic mics. Been there, used both of them, hated both of them.
I don't like them stock on anything. With lots of modding (a couple hours apiece and about $15 worth of parts), you can make them usable for some sources. They'll always have poor directionality and all sorts of comb filtering due to the metal bars in front of the grille, making them terrible choices for stereo recording (or anything else off axis) unless you're willing to disassemble the capsules, tear into the front part with a Dremel, and put the capsules back together....
Just my $0.02.