The Making of the Glencairn Methuselah Window: Page 66

April 10 1928

Chancel Clerestory.
Annunciation Panel

Ground in one grinder for about one hour
3 parts by weight of Modelling Clay Backing
1 part Golden Texture
This was ground in plenty of ordinary turpentine. It may have been slightly thickened and was 2nd quality turpentine.

I took an artist’s bristle paint brush, put the paint onto it and tapped it against a piece of iron. I afterward rubbed off the thinnest particles with my finger.
<fig.21 shows above technique, similar to fig.19 on p.83 (original notbook numbering, p. 61 web-publication)>