I'm still learning about H&R revolvers, the 'Auto Ejecting' model was different model than my 'Premier' thogh they appear superficially the same the overlapped production for quite a while. Sure wish we still had Bill Goforth to talk to. I really need to buy his books. Here is what I can find on the 'Auto Ejecting' model.
From
https://www.thefirearmsforum.com/threads/h-r-32-auto-ejecting-top-break.80070/
AUTOMATIC EJECTING THIRD MODEL
(SMOKELESS POWDER)----------------------------------1905-1940
Auto-ejecting mechanism, Calibers 32 S&W Long, 6 shot cylinder capacity, 38 S&W caliber 5 shot cylinder capacity, hard rubber grip panels with Target Logo, nickel finish (blue optional), barrel lengths of 2½ (rare), 3¼ (standard), 4, 5 & 6 inches available, top of barrel markings include company name and address and early production has patent dates, the one recognizable difference in the Second and Third Models is the caliber is marked on the left side of the barrel on the Third Model “IF IT HAS A CALIBER MARKED ON THE LEFT SIDE OF THE BARREL THEN IT WAS MANUFACTURED FOR SMOKELESS POWDER”
First Variation 4 patent dates (5-14 & 8-6-89, 4-2-95, 4-7-97) model name and caliber on left side of barrel ---1905-1908
Second Variation 2 patent dates (8-6-89 and 10-8-95) model name and caliber on left side of barrel ---1909-1912
Third Variation no patent dates the name of the state is marked as MASS----1913-1915
Fourth Variation no patent dates the state name of Massachusetts is spelled---1916-1924
Fifth Variation new grip frame, it is now the same size as the rest of the frame with no step down for the grip panel—1925-1941
After 1931 listed in Catalogs as: AUTOMATIC EJECTING No. 10 .32 S&W LONG CALIBER 6 shots and AUTOMATIC EJECTING No. 25 .38 S&W CALIBER 5 shots
After 1932 38 caliber iis listed in Catalogs as: AUTOMATIC EJECTING No. 20..38 S&W CALIBER 5 shots
VALUE: 100%=$235 60%=$85 For all Auto-Ejecting 3rd Models; add 75% premium for 2½” barrel; add 25% for 4”, 5” & 6” barrels; add 15% for blue finish;