Sun colored amethyst glass ! In a lot of cases this is done artificially, instructions on how it is done listed below.  If the glass is
before world war 2 it may contain magnesium the ingredient necessary to change the color, this process can be reversed if the
glass is to dark by placing in an oven the heat will reverse the process to soften the color.
1-Build a box with a lid and cover the insides with aluminum foil.
2-Install a germicidal light inside the box.
3-place the glass or bottle that you want to color inside the box and in time the item will turn amethyst.
Sick or stained glass! They would need to be cleaned with a tumbler.  The glass is suspended with special holders (stopples) and
does not "free tumble".  It does not damage the glass, just removes anything that is adhered to the glass.  Also needed  aluminum
oxide (all-purpose polish), 1200 grit silicon carbide (slow cutter for etching and light scratching),  tumbling copper.

Jardoctor@aol.com
Trade Cards glued down In scrapbooks !  I soak pages in tepid water with a small amount of vinegar to the water cards will come
unglued, I then pat them dry between cloth towels, then I place them on a smooth surface with books as weights to hold them
flat. Blotting paper between the cards and books helps when you do lots of cards at one time.
All about collecting dose cups
{My personal opinions}
Embossed dose cups.
Most popular ones to collect seem to be the small size ones and small size are easier to find.
{I think the large size dose cups display better}        
Conical dose cups:
Because of the way they are made it is hard to read while on display.
{Collectors like to include ones from their state in  their states collection}
Spoon dose cups:
Because of the way they are made it is hard to read while on display.        
{ Collectors like to include ones from their state in  their states collection}
Etched dose cups:
Vertical etching for display are the better ones.
{Collectors like to include ones from their state in  their states collection}
Silk Screened dose cups:
Often referred to as A.C.L.  {Applied Colored Label}
{Probably the least desirable of the dose cups to collect}
Collecting Suggestions
If you live in a given state collect that state but also collect one dose cup from each of the 50 states. This would give you a well
rounded out collection.
TO ALL MY COLLECTIONS