Is the portrait two or three dimensional?

>> Portraits in Oxford (http://www.odl.ox.ac.uk/portraitsinoxford/index.php)

 

Is the portrait rectangular, square, circular, oval, irregular in shape?

 

Are recorded measurements in metric and imperial?

 

Do your measurements record height before width?

 

What are the previously recorded measurements of the portrait?

 

Are these taken from a documentary source or are they first-hand measurements?

 

What do the measurements record?
sight-size
to inner edge of frame
actual size

 

What are you measuring?
to outer edges of frame
to outer edges of stretcher
to inner edge of mount
to base of bust or pedestal
diameter of oval
circumference of bust