The transparent sheets measure 20-1/2 in. by 16-1/2, and are ready for immediate use. The other articles required are some clear white varnish, some liqueur diaphane, brushes, metal palettes, and ivory sticks. These are all the appliances required.
2552. Calculation of Quantities
To ascertain the quantity of designs required, measure your glass carefully, and then calculate how many sheets it will take (the sheets being 20-1/2 in. by 16-1/2 in. as given above). The sheets are arranged so that they can be joined together continuously, or cut to any size or shape.
2553. Practical Instructions
Choose a fine day for the operation, as the glass should be perfectly dry, and unaffected by the humidity of the atmosphere. Of course, if you have a choice, it is more
convenient
to work on your glass before it is fixed in the frame. If you are working on a piece of unattached glass, lay it on a
flat