De verkar vara C24th ta på apotekare carboys som är en traditionell symbol för någonstans du kan få medicin. De innehåller bara färgad vätska.
The carboy is a recognised symbol of the pharmaceutical profession. It dates back to the 1600s when they were used to distinguish between pharmacists and apothecaries who used a pestle and mortar as their sign.Some historians believe that they became more important during outbreaks of the plague in the 1600s. People needed to reach pharmacists quickly and literacy levels were low, the carboys were used as a guide.
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Colours
Some carboys are made of coloured glass and others contain coloured liquids. They showed customers the purpose of the shop when few could read. The reason for their colourfulness was to attract custom. There are many explanations for the use of certain colours.
Meanings of colours
The reasons below have medical origins:
Blue and Red - represents venous (deoxygenated) and arterial (oxygenated) blood. 1
