Mayland 2-in-Hand Bells:

Late 1880's-Early 1940's, Mayland Foundry, Brooklyn, NY. Extremely rare. Eight handbells are fashioned into a diatonic octave with 2 bells on each handle, made to play a diatonic scale.

Mayland 2ih Octave
Mayland 2ih Individual

Mayland also made regular handbells. 

Here are pictures of a set Marlow refurbished in stages of restoration from beginning to completion.

BEFORE:
 
Mayland Broken Handle
Mayland Before Inside
Mayland Old & New Handles
Mayland Old Yarn Wrapped Handles
Mayland Before Handles2
AFTER:
 
Mayland New Clappers
Mayland Clappers Close Up
Mayland New Inside
Mayland New Outside