Firstly, a number of large plates were issued with blank backs making it difficult to allocate them to their correct sets. All of the album plates are listed in the Index of Album Plates which includes illustrations of all the blank-backed & unnumbered plates produced by Verkade.

Secondly, there has been a lack of definitive information on Verkade issues and it has often been unclear how many cards & plates made up a particular set. The Index of Verkade Albums goes some way to resolving this shortfall.

Thirdly, and at a practical level, the larger plates are not easy to store safely alongside a block of 100+ standard cards of a set as this would inevitably lead to the former being creased.

The other significant change from this point onwards was the quite dramatic rise in the album print runs. Over 84,000 copies of "Mijn Aquarium" (My Aquarium) were produced in 1925 whilst the following year saw the print run rise to 99,000 copies for "De Bloemen in Onzen Tuin" (The Flowers in our Gardens). The trend continued in 1927 with "Texel" (Texel District) breaking through the 100,000 copy barrier. The 1928 production "Kamerplanten" (Houseplants) proved that print-runs in excess of 100,000 would be the norm from this point onwards and is one of the most commonly seen in Britain.

1929 saw the issue of "Paddenstoelen" (Mushrooms & Toadstools) and, although it had a comparable print run, this album is seen far less frequently in Britain than most of its contemporaries. This may well have been due to the superb illustrations within Paddenstoelen which effectively capture the vibrant colours of the subjects they depict.

Mijn Aquarium	De Bloemen in Onzen Tuin	Texel

Kamerplanten	Paddenstoelen

The Card Mine