This was answered previously (me? someone else?..not sure) but I can't seem to find it to link you to it.
Thus, it is a red Bicycle Deck!
If I can be presumptuous and add to your question...
I don't think that it's a 'Rider back' deck.
Most likely, it's manufactured w/"Maiden backs".
To verify, send PM an email if this is of import to you.
Best wishes ;-)