An unusual place to display advertisements was on the back of postage stamps. People were invited to contemplate their buying needs before licking and sticking.
Te whakamahi i tēnei tūemi
Alexander Turnbull Library
Reference:
PAColl-9379
Permission of the Alexander Turnbull Library, National Library of New Zealand, Te Puna Mātauranga o Aotearoa, must be obtained before any re-use of this image.
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