In the 1970's and beyond, Kasimir Bileski studied the varieties of papers and gums in the 1968 Saskatchewan Law stamps of van Dam SL57-SL67. He bought up as many sets that he could find and left many notes on his progress. To show the rarity of this completed set (and other like varieties), Bileski wrote that he had traveled over ten thousand miles buying plenty of Saskatchewan Laws in search of certain varieties. He stated that he had an excellent idea of what exists, and the relative scarcity. He commented that "No one will ever know how many stamps there are in the set or what is a 'set'". The notes continues to say that “it is impossible for everything that was printed to exist MINT in a complete form”.
To this date, one set has been completed and others are beginning to fill in thanks to a study by Kenneth Prescott. Ken has managed to complete a set of van Dam SL57-67 PVA gum, Dull Paper.
Area of Study:
We are trying to fill in other sets of specific gum and paper types.
The following van Dam set numbers in red have been found. The numbers in black are still unknown.
Dull Paper, PVA Gum 57,58,59,60,61,62,63,64,65,66,67
Dull Paper, Smooth Dex Gum 57,58,59,60,61,62,63,64,65,66,67
Dull Paper, Splotchy Dex Gum 57,58,59,60,61,62,63,64,65,66,67
Plain Paper, Smooth Dex Gum 57,58,59,60,61,62,63,64,65,66,67
Plain Paper, Splotchy Dex Gum 57,58,59,60,61,62,63,64,65,66,67
If you can help with any of the numbers, please reply using Facebook Comment below or send an e-mail to me at firstname.lastname@example.org
If able, please attach pics to the e-mail.