I actually was not surprised that all you could come up with were websites and no primary source documantation to support the points that you raised concerning button manufacture.
In a previous post you mentioned that billard balls were originally manufactured of milk and vinegar. Might I suggest you reinvestigate your 'sources' as originally billard balls were manufactured from bone or ivory and then from nitrocellulose. They are currently made of plastics and resins.
Just to set the record straight, early Canadian OG107 Buttons were never edible and were manufactured from phenolic.
Yes casein ‘plastic’ does use milk as a basis and was a popular form of manufacturing buttons prior to the Second World War although again these buttons were never edible. Unfortunately your hypothesis linking casein buttons to those on OG107 Combats is not correct and you have followed this through with sketchy research based only on internet sources.
In a previous post you mentioned that billard balls were originally manufactured of milk and vinegar. Might I suggest you reinvestigate your 'sources' as originally billard balls were manufactured from bone or ivory and then from nitrocellulose. They are currently made of plastics and resins.
Just to set the record straight, early Canadian OG107 Buttons were never edible and were manufactured from phenolic.
Yes casein ‘plastic’ does use milk as a basis and was a popular form of manufacturing buttons prior to the Second World War although again these buttons were never edible. Unfortunately your hypothesis linking casein buttons to those on OG107 Combats is not correct and you have followed this through with sketchy research based only on internet sources.