LVL are the initials of :
LULU VERHOREN LAVELL

She was an artist who designed the Art Nouveau Cast Iron for the Minnesota Candlestick Company. She had patents on Doorstops and Candle Holders. They were mostly of Colonial People & Flowers

MARKING STYLE :
Their doorstops were marked with the Letters
LVL
the "L is made, not at a 90 degree angle, more like 60 degrees

Sometimes there was a © Symbol in front of the LVL
And, sometimes they added
PAT APPL FOR or PAT PEND "

DOORSTOPS MADE BY LVL :
COLONIAL WOMAN
WOMAN IN RUFFLED DRESS WITH 2 BOWS
CALYPSO GUITARIST
ART DECO FLOWERS
ZINNNIAS
OXEN, PIONEERS & WAGON