From the V&A
Originally, the gown was probably a sack back, with loose box pleats at the back to allow for maximum display of the silk pattern. The gown would have been open down the front, with folded-back robings and rectangular cuffs at each elbow. The last conversion in the 1780s to the style of that time was quite clumsily executed, suggesting that perhaps the gown had been handed down to a maid.
This is clumsily executed? I think it looks good but hey I’m no expert. I’d love to execute my dresses so clumsily.
By the way, send more requests my way. I don’t want this blog to turn into 18th-century-obsession-fest but I’m too lazy to think of what era to post.