the plate with the glass bead sign does not appear to be on the Internet. Karlis, did you obtain a copy of the plate from the Harvard Library?

1) Sotheby's copy:
[Fung, H.K.] THE SHOP SIGNS OF PEKING (YANDU SHANGBANG TU). PEKING: CHINESE PAINTING ASSOCIATION OF PEKING, [1931]

LIMITED EDITION, ONE OF 100 COPIES, oblong folio (250 x 310mm.), 101 fine hand-coloured illustrations on 18 leaves with English and Chinese captions, original cloth-backed brocade boards, paper label, string tied, offsetting of silver paint oils to adjacent leaves, light wear to binding with light bowing to top edges...

http://www.sothebys.com/en/auctions/ecatalogue/lot.197.html/2016/china-print-paper-l16409

2) Harvard copy:

https://www.google.com/search?q=THE+SHOP+SIGNS+OF+PEKING(YANDU+SHANGBANG+TU).+PEKING:+CHINESE+PAINTING+ASSOCIATION+OF+PEKING,&rlz=1T4ADFA_enUS460US460&source=lnms&tbm=isch&sa=X&ved=0ahUKEwjljqOa99XYAhVicd8KHZqEB5EQ_AUICigB&biw=1120&bih=566&dpr=1.5#imgrc=pvk1gXHLg_ZgRM:&spf=1515880570415

A note, the sign in the colored plate is labeled "glass bead" sign. I wonder if only glass beads were sold in the shop or the label refers to the glass beads used in the sign. Seems likely to be the former. I found a few auction catalogs from the 1920s-30s containing court necklaces (no pictures, though). This suggests that some necklaces composed of the more precious beads were collected in the early Republic?