Ivan Alexander and Michael Ansen, Bulgaria, 1331-1371 AD, AR Grosh - Very Fine Gallienus The irradiator works as follows:

The irradiator works as follows: A mixture of radioactive antimony and beryllium is enclosed in a lead container

This note is a mule

Reverse: GOOD FOR / 10¢ / IN TRADE

Sovereign coin backed by the Royal Canadian Mint

but I've seen far worse in no problem holders

Ivan Alexander and Michael Ansen, Bulgaria, 1331-1371 AD, AR Grosh - Very Fine Gallienus The irradiator works as follows:The long reign of Ivan Alexander is considered a transitional period in Bulgarian medieval history. Ivan Alexander began his rule by dealing with internal problems and external threats from Bulgaria's neighbours, the Byzantine Empire and Serbia, as well as leading his empire into a period of economic recovery and cultural and religious renaissance. Obverse: Christ standing in front of throne, hands raised in benediction Reverse: Ivan and Michael