Overall length 57.75"; barrel length 41.5" to 42"; caliber .69. Markings: although Barretts placed no marks of their own, on their alterations most were effected on Virginia Manufactory muskets, whose lockplates are marked "VIRGINIA/Manufactory" forward of hammer and "RICHMOND/(date)" on tail. For many years collectors considered adaptations of Hall rifles and carbines from breech-loaders to muzzle-loaders to be the product of J.B. Barrett & Co. of Wytheville. Recent evidence, however, confirms that those adaptations were actually effected in Danville, Virginia, by another firm (see READ & WATSON). Nevertheless, Barretts of Wytheville did adapt arms during early years of American Civil War. Adaptation effected almost exclusively upon Virginia Manufactory flintlock muskets, consisted of percussioning by means of cone-in-barrel and rifling of barrels with seven narrow grooves. In 1861 and 1862, Barretts percussioned a total of 1250 muskets, of which 744 were rifled. Expert authentication recommended. Values are speculative.