It's a reasonable guess, but it's lateral cut, not  hill-and-dale.  
Hindermeyer also recorded the song for Okeh, and I  have it.  It is definitely not 
HH.  This singer is much  better. 
 
pc
 
 
In a message dated 10/26/09 8:51:56 P.M. Eastern Daylight Time,  
[log in to unmask] writes:

It's not  a Diamond Disc is  it?

http://www.archive.org/details/HarveyHindermeyer-SunnyWeatherFriends1920Edis
onCylinder
Roger


--- On Sun, 10/25/09, Paul Charosh <[log in to unmask]>  wrote:

From: Paul Charosh <[log in to unmask]>
Subject: [ARSCLIST]  test pressing data requested
To: [log in to unmask]
Date: Sunday,  October 25, 2009, 9:50 PM


It's a 10" white label test.  MASTER  TEST NO. appears at 12  o'clock.
Below it, in light pencil, is:  A5816