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|Date of Issue||June 7, 1956|
|Perforation or Dimension||12|
|Printer||Canadian Bank Note Company, Limited.|
M-NH-VF Mint - Never Hinged - Very Fine
|Mint - Never Hinged - Very Fine||$1.60|
U-VF Used - Very Fine
|Used - Very Fine||$0.15|
This stamp has a hidden date in the bottom-right corner.
This stamp has the initial of the designer in the top-left corner. The initial P belongs to Alan L. Pollock.
These two stamps feature two significant secondary industries of Canada. The 20-cent stamp replaced the 1952 issue of the same denomination. The 25-cent stamp is a new denomination; in fact, this is the first time that Canada has ever issued a 25-cent postage stamp. Apart from paying registration and postage charges, the 25-cent stamps may be used to prepay charges on overseas mail to certain destinations.
The design depicting a laboratory vessel is illustrative of the scientific equipment used widely for research in the chemical industry. A representative chemical plant appears in the lower part of the glass container. Glass tubing extending from the vessel encloses at enlarged ends a head of wheat to represent agriculture and a symbolic industrial plant. This design emphasizes the significance of chemistry in our daily lives and in the nation's development.