I'm not an expert (but am improving my knowledge and ability to identify lace). There are many bobbin varieties of lace that look similar: Mechlin, blonde, lille, as well as decorated net laces that are embroidered (tamboured) or needlerun. From what I can see, the yardage you have is machine made, as is the collar, and neither are early or rare. The stoles or flounces are the best things. I believe the best one is with the leaves and is Chantilly, but none look as early as the 1820s to me - most likely mid 19th century.