Katharina of Bora, bust-length, facing left

See German version

- beech wood; single panel, not cropped. Bevelled on all sides to 0.7 cm. Chamfered to a width of 7 cm.

- Dendrochronology: 128 annual rings were measured on this single panel: 128 annual rings, 1526-1399. The youngest annual ring is from 1526. Generally with beech wood the entire section was used and only the bark was removed, therefore a felling date of 1526 can be estimated. The wood was then seasoned for two years before use (Klein 2016).

- chalk ground

[Cat. Coburg 2018, 172]

Identification of wood species: beech wood

Plank I: 128 annual rings, 1526 - 1399

The youngest annual ring is froom 1526; the earliest felling date is therefore 1526; following a two year seasoning period the panel could have been used from 1528.

[Klein report, 03.03.2016]

Bildträger:

• distinct splits, suggesting inappropriate treatment; marks on the reverse, suggest that the support was fittied in a grooved frame.

Varnish:

• the painting has a glossy resin varnish, which was probably applied repeatedly with a brush. The strong fluorescence of this layer restricts the identification of retouches under UV light to a few relatively new ones.

[Cat. Coburg 2018, 172]