Not sure if you mean anything specific with technical differences, but I'll give it a shot, and then you can tell me if I answer the right question 
An overview of the differences:
- Coin: A tangible piece of material, usually metal, used as legal tender and issued by a governmental authority or on commission by such an authority.
- Token: A coin-like object, issued by someone else than a governmental authority (by businesses, corporations, towns, etc), with different uses: As coins (in practice as legal tender); as a means of payment for specific uses (telephone call, gas, electricity, arcade games, a pint, ...); as game money; as propaganda pieces; and more.
- Medal: Non-monetary object, usually issued for commemorative or celebrational purposes, or as an award or reward. Can be issued by anyone.
Tokens can also be called jetons (sometimes this term is reserved for pre-modern time tokens).
Then there is token money. That is any form of money with intrinsic value less than the nominal value. All modern money - be it banknotes or coins made of base metals - are token money. Coins of silver or gold were not (if the silver/gold content was high enough). Token coin is token money in the form of coins (or tokens).
Hope that was helpful!
An overview of the differences:
- Coin: A tangible piece of material, usually metal, used as legal tender and issued by a governmental authority or on commission by such an authority.
- Token: A coin-like object, issued by someone else than a governmental authority (by businesses, corporations, towns, etc), with different uses: As coins (in practice as legal tender); as a means of payment for specific uses (telephone call, gas, electricity, arcade games, a pint, ...); as game money; as propaganda pieces; and more.
- Medal: Non-monetary object, usually issued for commemorative or celebrational purposes, or as an award or reward. Can be issued by anyone.
Tokens can also be called jetons (sometimes this term is reserved for pre-modern time tokens).
Then there is token money. That is any form of money with intrinsic value less than the nominal value. All modern money - be it banknotes or coins made of base metals - are token money. Coins of silver or gold were not (if the silver/gold content was high enough). Token coin is token money in the form of coins (or tokens).
Hope that was helpful!



















