Measuring linen

In the Western world today, we think in centimeters or inches. For sewing projects that don't involve fitting, it's easy to think in round numbers; perhaps different ones depending on if we prefer metrics or Imperial units. But European women in the 18th century and earlier probably picked other 'round numbers' than we do now.

The Peacock Scale

In thinking about how to grade historical accuracy, I realized that not all aspects of accuracy are equal. If the over-all impression of a garment is strikingly inaccurate, it doesn't really help if a closer examination shows that the details are correct (e.g., consider a hand-sewn 18th century shift made from shock pink linen).

So, IMHO some requirements are more basic than others, and need to be fulfilled before I can get "accuracy points" for other aspects—sort of like a parallel to Maslow's hierarchy of needs.

From there, I came up with this four-level scale as a guide to self-grading my historical garments: