Mystery Glass is sold by type, labeled with a code. It comes from redundant test batches, odd batches, seconds, thirds and other mysteries.
Sales are final.
No refunds or exchanges.
Understanding the Codes
Superscripts; R = reducing, S = striking, N = neutral and R/S = reducing and striking (what we call dual). This is all you need to know to use the glass. If you want to know more, search for the first two capital letters in the Color Archives. Use a hyphen, (ex. RO-). The mystery glass will be similar but not an exact match. The number and lower case letters are for our reference.