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The Pineapple is the offical symbol of Hospitality because in some countries the pinapple is a sign of welcome.
pinneapple
Hospitality is the act of making a guest feel welcome.
During the seventeenth century,the pineapple serves as for the "Gods".It is being served during fine dining among European royalty and aristocrats; hence it became a symbol of royal treatment and welcome. The pineapple has enjoyed a rich and romantic heritage as a symbol of welcome,friendship,and hospitality.It was displayed at the doors or on gate posts giving public notice to friends and acquaintances. Since its introduction it is internationally recognized as a symbol of hospitality and a sign of friendliness,warmth,cheer,graciousness,and conviviality.
The symbol for InnSuites Hospitality Trust in the AMEX is: IHT.
The symbol for Diamondrock Hospitality Company in the NYSE is: DRH.
The symbol for Hospitality Properites Trust in the NYSE is: HPT.
The symbol for Hersha Hospitality Trust in the NYSE is: HT.
The symbol for Ashford Hospitality Trust Inc in the NYSE is: AHT.
There is no specific friendship symbol of Italian descent. However a good friendship symbol is the infinity symbol. It can represent being friends forever.
Pineapple
Manufacturing is making something, hospitality is the action of making people welcome.