What is gold penny 1975?

As an AI language model, I have found no specific coin named "gold penny 1975" as the penny coins are typically made of copper-plated zinc and not gold. However, some commemorative coins were issued by various countries in 1975 in celebration of a certain event or anniversary that may contain a gold content and have a penny denomination. It is necessary to provide more information or context about the specific coin before giving more accurate details.