It's hard to tell whether the Yaffa/Page sub-editors intentionally - that is, with deliberation - altered the colour scheme on this cover, or whether they just inadvertently stumbled onto a red Daredevil costume, given the original cover of Daredevil #2 featured the yellow Daredevil costume. Either way, the Electro costume is wrong... unless there's a golden Electro in Marveldom that I'm blissfully unaware of...
Regardless of intent, this issue is a beauty for Daredevil fans, reprinting the first three issues of Daredevil in glorious black and white. The first issue is reprinted sans the splash page, but apart from that, and some editing of the next issue boxes (and the covers to #'s 1 and 3) I believe the reprints are complete.
I wouldn't be shocked to find this issue is reprinted later in this series, just as the Yaffa Avengers #1 is reprinted as #10 in the series.
The rear cover advertises The Fantastic Four series at a cover price of 35c. Curious, as the Daredevil issue has a 50c cover price. The same advertisement appears on the rear of Yaffa's Conan the Barbarian #1, which is also a 50c cover. The Avengers #1 also has the 35c Fantastic Four advertisement on the rear cover, the only difference the blue and red ad text components are reversed, which suggests to me The Avengers #1 was released slightly earlier or later than Daredevil #1 and Conan #1.