Historical note: my mother-in-law used my father-in-law's crib for all her
babies.  One side lets completely down and is snugged up against the bed.
These cribs have low sides and take a regular crib mattress.  They were
popular in the early 1900's. Pop was born in 1908.  I picked one up at a
house auction for myself. Sincerely, Pat Young in SNJ