4 Different stamps with "P.H" perfin (unknown company), rare (Image)

6 Different stamps with "PMA" perfin (Primera Maltera Argentina), rare (Image)

7 Different stamps with "S" perfin (Cervecería Schlau S.A.), rare (Image)

Lot of 36 stamps with PERFINS, most of fine quality (Image)

Group of 20 perfins, most of fine quality, good lot to look for spacefillers (Image)

4 Different stamps with "S" perfin (Squibb Argentina S.A.), rare (Image)

7 Different stamps with "A.M" perfin (Agencia Marítima del Río de la Plata), rare! (Image)