Hi Group, Ann Donoghue asked about an unknown nickleodeon [210716 MMD].
It is definitely a Coinola. It looks like one of their "Midget" series.

It is listed as "Coinola Midget Orchestrion with drums" in "The Reblitz 
Bowers Encyclopedia"; see link below. It is not exactly the same but is
very similar.

Coinola was a division of the Operators Piano Company. I can't help with
the instruments date without a serial number. If you look up Coinola and
Operators Piano Company you will find more information.

My Coinola Midget K, serial number 175984, is thought to be circa 1921.

Jack Conway
Los Angeles, California

[ Jack Conway and his Coinola Midget "K" with pipes playing Style "O"
[ music; photo by Lowell Boehland for AMICA Southern California Chapter.
[ https://www.mmdigest.com/Attachments/21/07/18/210718_180139_Coinola%20Midget%20K.jpg
 

[ "Coinola Midget Orchestrion with drums", in "The Reblitz Bowers
[ Encyclopedia", p. 351; publ. by AMICA Inc., 2021.
[ https://www.mmdigest.com/Attachments/21/07/18/210718_180139_Coinola.jpg
 

[ "The Instrument" (Ann Donoghue article)
[ https://www.mmdigest.com/Attachments/21/07/16/210716_143450_The%20Instrument.jpeg
 

[ Coinola Midget Orchestrion Style "O" with xylophone and drums,
[ from the Don Teach collection
[ https://www.mmdigest.com/Gallery/Pictures/teach_Midget.html