Esclavo y amo / El loco

Matrix number 0101-8852 on the labet of the "Esclavo Y Amo" side.
Matrix number 0101-8853 on the label of the "El Loco" side.

The matrix numbers of Esclavo y amo / El loco -Javier Solís con el Mariachi Nacional De Arcadio Elias are :

Matrix number 0101-45-8852 on the labet of the "Esclavo Y Amo" side.
Matrix number 0101-45-8853 on the label of the "El Loco" side.

There is a suspicion that one of the two label beared an error that was perhaps fixed when the vinyl version was released.