Conservation of the Great East Window
By
Susan Bradbury F.M.G.P., F.R.S.A.
No one who has been inside Govan Old this year can have failed to notice
the enormous scaffold in the Chancel, which has been there to allow access
for Stained Glass Design Partnership to conserve the Great East Window.
Sadly, the window, especially the oculus, was peppered with pellet holes,
each causing a bright spot of light often with a surrounding star crack
to the glass. A few had been repaired in the past by sticking pieces of glass
on the outside, but unfortunately, these were in odd colours, for instance,
St. Kentigern held a salmon with a bright turquoise head.
The most conspicuous damage was a hole in one of the Seven Lamps which
surround Christ. Fragments of glass had already fallen and more were
threatening to descend. Less conspicuous, but possibly more serious,
was the deformation of the area at top centre which shows the lovely
rejoicing angels, which, if left in position, wold have very gradually
collapsed over the next few years. It could even have "popped out"
in a storm.
But, because the circular window is made in 12 separate panels, we were
able to take only the problematic one to the Studio for remedial action.
It was a heart-in-the-mouth job to bring the lovely angels down the scaffold
tower, and later to lift them up again.
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Plate 1: This shows the extent of the panel that needed to be lifted down the scaffold and taken to the Studio for conservation. |
Conservation of the panel involved carefully dismantling the deformed area
by removing the old lead, solder and sealant. Each individual piece of glass
was carefully cleaned, taking care of the delicate painted detail and then the
panel was reglazed with new lead calmes in exactly the same style and pattern
as the original lead work. We took the opportunity to insert a few new
pieces of glass to replace unfortunately coloured previous repairs and
heavily shattered blue background.
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Plate 2: Christ, with two old lamps and one new lamp. |
Back on site, many other pellet holes needed to be repaired. We inserted
a few new pieces of glass, carefully matched for colour and texture and
carefully painted in the style of the original artists. The new lamp was shaded
to match the other six and silver stain was applied to create the golden
light emanating from Christ. This single piece of glass needed to be fired
in the kiln 4 times.
Glass was bonded, sometimes with a clear sealant or sometimes with an
opaque sealant, and missing details of the design were touched up with oil
paints. All these techniques are reversibles so that future conservators can
repeat work if improved techniques or adhesives are developed. Pieces of
hardboard had been stuck over holes and were removed, varnish was dissolved
from the face of John the Baptist and new green glass leaves were made for
one of the trees. Finally, the entire window was cleaned, using non-abrasive
cleansers, several pounds of soft cotton cloth and oodles of elbow grease.
We were covered in cobwebs and in an embarrassingly filthy state when we came
down from the scaffold on that evening. But it was worth all the dirt and
all the effort to conserve this wonderful window.
It was made almost a century ago by Charles Eamer Kempe and his craftsmen.
It was installed in September 1899 and dedicated to the memory of John
Macleod, who the inscription at the bottom right describes as Not
slothful in business; fervent in spirit; serving the Lord. The story of
Macleod and the commissioning of the stained glass can be found in the
booklet The Stained Glass Windows of Govan Old Parish Church by Sally Rush.
From the scaffold, we could see details that are hardly noticeable from below,
and after cleaning and conservation, the glass had a lovely sparkle. We
especially enjoyed the small cherubim and seraphim and in varying rich shades
of red and blue, and the beautiful faces of Saints Margaret and Cecilia.
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Plate 3: One of the many beautiful faces which are hard to appreciate from below, the prophet Isaiah, untypically beardless. It's worth examining this lovely stained glass with binoculars. |
It's worth bringing binoculars to examine these and other high details:
- St. Paul with his sword
- St. Peter with his key
- St. Columba holding a replica of Iona Abbey
- St. Kentigern holding a ring and a salmon
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Plate 4: "The Lamb" -- again, worth seeking out with binoculars. |
In the lancets, look out for finely dressed Magi on the left, Adam and
Eve and a fearsome devil on the right, and a truly moving "Via Dolorosa"
in the centre. So don't forget: bring binoculars and spend some time enjoying
the highlights of Govan Old's stained glass.
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