Company Names, addresses, dates:
  William E. Lum , Petersburg VA
  Lum Brothers , Petersburg VA

Notes:
(more information will be added when I get around to researching this druggist)

Bottles:

(enlarge)	Clear 3.6" (1 oz) bottle embossed: horizontal on top: 3i vertical: WILLIAM E. LUM / PHARMACIST / PETERSBURG, VA. base: * * * / W T & CO / ? / U.S.A.
(enlarge)	Same as above but larger, this is a clear 4.5" (2 oz) bottle embossed: horizontal on top: 3ii vertical: WILLIAM E. LUM / PHARMACIST / PETERSBURG, VA. base: W T & CO / *** / B / U.S.A.
(enlarge)	Clear 3.6" bottle embossed: vertical: LUM BROS. / Pharmacists / Petersburg Va base: PAT DEC 13 87 / C.L.G. Co 4
(enlarge)	Clear 5" bottle embossed: vertical: LUM BROS. / Pharmacists / Petersburg Va base: PAT DEC 13 87 / C.L.G. Co
(enlarge)	Clear 5.3" (3 oz) bottle embossed: horizontal: 3iii vertical: LUM BROS. / Is The Place