Vintage grapefruit corer

A grapefruit corer is a kitchen utensil designed to remove the core of a grapefruit, making it easier to eat. Here's a breakdown of what they are and what they do:
* Purpose:
* Grapefruits often have a tough central core that can be bitter. A corer helps to remove this, improving the eating experience.
* It also aids in separating the grapefruit segments from the rind.
* Types:
* There are various designs, from simple tools with a curved, serrated blade to more complex devices.
* Some tools combine the coring function with a segment-scooping function.
* Older style corers, as shown in the search results, where designed to remove a much larger core then modern grapefruits have.
* Functionality:
* Typically, a grapefruit corer is used by inserting the blade into the center of the grapefruit and twisting or cutting to remove the core.
* Modern tools often have a curved blade that helps to separate the segments after the core is removed.
Essentially, a grapefruit co