I don't believe those blue jean selvages are the same as the old lists. Think about what would be involved in making gun cases or slippers from those 1/4' -1/2" modern selvages.
June 23, 1768 James and Drinker delivered to Baynton, Wharton and Morgan:
“10 Chests each containing 30 French guns with neat blue & Gilt Barrels & List cases is 300 Guns (at 32 shillings a piece)"
Spence
June 23, 1768 James and Drinker delivered to Baynton, Wharton and Morgan:
“10 Chests each containing 30 French guns with neat blue & Gilt Barrels & List cases is 300 Guns (at 32 shillings a piece)"
Spence