The story goes that from the little Albert stamps reproductions on silk were made to serve as souvenirs, for instance little flags, hankerchiefs, tablecloths, ..
The Grubben catalogue mentions these prints under the heading :"proofs"
…preuves de la planche ( proofs of the plate)
  Grubben nr 1349
  5 c green (without cross) on white silk
Grubben nr 1357
  10 c red on white silk
Apparantly there is no printing on silk of the 20 c.
According to Vervisch, repeated later by Stess, these are no proofs, but indeed souvenirs, because they have nothing to do with the development of the stamp.
The question remains a little of these reproductions on silk were made by Verschueren departing from the original lithografic stone or later departing from the forged stone, from which also the dangerous type 1 and 2 of the forgeries were made. We can only give a decisive answer on this question when we find a reproduction on silk with type 1 and type 2 5 c green stamps placed according to the exact placing of these types on the original lithografic stone, which doesn't match the placing on the forgeries

The following examples are in our posession for the moment:
  1) Little Albert 5 c on silk without cross
    - block of six type 1
- block of six type 1
- block of eight type 1
  2) Little Albert 10 c on silk
    - block of four type 1
  3) Little Albert 5 c on silk with cross
    These are not mentioned by Grubben, the possibility that this is a forgery is very likely:
  a) The reproduction of the red crosses is very unclear,while the printing of the stamp itself is very clear.
      b) The placing of the crosses is slightly different in every postage stamp, giving the impression that these are placed one by one using an individual stamp,thus not using a complete lithografic plate with the red crosses only, like used by the real and forged stamps on paper.