this company oppenheimer collins says you may find an original here. you may buy a copy here. you may buy an adaptation here. but never a forgery of fashion. all right, guys. thank you so much. listen -- next time you meet on friday, it will be back over in laurel hall and we will be doing an artifact analysis of garments from the 20th century to try to identify which garment fits into which decade. that is friday. hope to see you then. [applause] [captioning performed by the national captioning institute, which is responsible for its caption content and accuracy. visit ncicap.org] [captions copyright national cable satellite corp. 2015] >> join us each saturday at 8:00 p.m. and midnight eastern for classroom lectures from across the country on different topics and eras of american history. lectures in history are also available as a podcast. visit our website -- c-span.org/history/podcasts or download them from itunes. >> each week, american artifacts visits use em's and his workplaces. established by congress in 19 -- in 1820, the united states botanic garden is the oldest g