May 272016
 

In order to copy a pattern in this way, the first step is to tack or pin the piece of stuff or paper on which the copy is to be made upon the pattern.
In the case of a small pattern, the tacking or pinning may be dispensed with and the two sheets held firmly pressed against the window pane with the left hand, whilst the right hand does the tracing, but even then it is safer to pin or gum the four corners of the two sheets together, in case of interruption, as it is difficult to fit them together again exactly.
The tracing may be done with a pencil, or better still, with a brush dipped in Indian ink or water-colour paint.
The process of tracing is easy enough, so long as the hand does not get tired but as this generally comes to pass very soon it is best, if the pattern be a large and complicated one, to stick the sheets to the pane with strong gum or suspend them on a string, fastened across the pane by pins stuck into the window frame on either side.