Years ago, I picked up a used copy of vol 2 of Michael Ammar’s Easy to Master Card Miracles. The bonus effect included (meaning the required gaffs were supposed to be included with the DVD) was, according to the packaging, Macdonald’s Aces.

However, the gaff cards actually included with what I ended up with were definitely not those.

I suspect the previous owner may have somehow mistakenly substituted gaffs from a completely different effect when it was sold to me. Ever since, I’ve been wondering what trick the gaff cards I instead received were actually intended for.

The “mystery cards” I received consist of just three double-facers. Fanned on one side, they appear as the 6H, 6C & 6D. Turn the fan over, and they present as the 5C, 5D & a blank card.

Any ideas what I might have somehow inadvertently wound up with?

Sound like the gaffs to Aldo Columbini’s Paramount which was another tape.

I subsequently also picked up vol 5, which indeed includes "Paramount" as its included bonus effect.

The "Paramount" gaffs consist of one blank-backed card with a normal face (in my case, the 5 of Clubs), and two blank-faced cards with normal Bicycle backs.

My mystery gaffs consist instead of one blank-backed card with a normal face (in this case, the 6 of Hearts), and two double-faced cards (one 6D/5C, one 6C/5D).

If I had to guess, I would say that the previous owner may have mixed up the cards from Paramount (vol. 5) and Factory Misprints (vol. 4).