in the 1940's iver johnson only made one top break revolver that was a 6 shot 32 S&W Long caliber. it was the large frame safety automatic revolver, both hammer and hammerless model were made. to tell the year of manufacture i will need to know the letter code and serial number (found under the grips on the left side of the grip frame) is.
as rjay has said for most of the iver johnson revolvers made during this time it would be hard to identifywith what you have posted. this one being a top break in 6 shot 32 S&W Long make it a some what easier to tell the model but i still need the serial number and letter code to tell the year.
THIRD MODEL SAFETY AUTOMATIC HAMMER REVOLVER
(Smokeless Powder Cartridges)--------------------1909-1941
LARGE FRAME AND SMALL FRAME VERSIONS USES HAMMER THE HAMMER ACTION: Double top post barrel latch with Hammer the Hammer action. This model redesigned to be strong enough for smokeless powder. All coil springs, hard rubber grip panels with Owls head at top, optional oversize grips of hard rubber or wood were offered. Two frame sizes, four calibers, Standard barrel length: small frame 3 inches, large frame 3 ¼ inches. Calibers: small frame .22 rimfire 7 rounds cylinder capacity, .32 centerfire 5 rounds cylinder capacity, large frame .32 Special centerfire with 6 rounds cylinder capacity, .38 centerfire with 5 rounds cylinder capacity; Weight: small frame .22 rimfire with 3 inch barrel 13 ounces, .32 centerfire with 3 inch barrel 13 ½ ounces, large frame with 3 ¼ inch barrel .32 Special 19 ounces, .38 centerfire with 3 ¼ inch barrel 18 ¼ inches; Height: small frame 3 ¾ inches, large frame 3 7/8 inches; Frame length: small frame 4 3/16 inches, large frame 5 inches; Overall length: small frame with 3 inch barrel 6 3/8 inches, large frame with 3 ¼ inch barrel 7 3/8 inches. Main serial number location on left side of grip frame grips must be removed to see. The Third Model features a double top post barrel latch, coil hammer spring and four cross pins in the lower frame.
VALUE: 100%=$250 60%=$115
THIRD MODEL SAFETY AUTOMATIC HAMMERLESS REVOLVER
(Smokeless Powder Cartridges)-------------1909-1941
LARGE FRAME AND SMALL FRAME VERSIONS USES HAMMER THE HAMMER ACTION; Double top post barrel latch, with Hammer the Hammer action, nickel finish standard blue optional. Two frame sizes, four calibers, hard rubber grip panels with Owls head at top, two piece oversize hard rubber and one piece wood grips optional. Redesigned for smokeless powder. Standard barrel length: small frame 3 inches, large frame 3 ¼ inches; Calibers: small frame .22 rimfire with 7 rounds cylinder capacity, .32 centerfire with 5 rounds cylinder capacity, large frame .32 Special with 6 rounds cylinder capacity, .38 centerfire with 5 rounds cylinder capacity; Weight: small frame .22 rimfire with 3 inch barrel 13 ½ ounces, .32 centerfire with 3 inch barrel 14 ounces, large frame .32 Special with 3 ¼ inch barrel 19 ¼ ounces, .38 centerfire with 3 ¼ inch barrel 19 ounces; Height: small frame 3 ¾ inches, large frame 3 7/8 inches; Frame length: small frame 4 3/16 inches, large frame 5 inches; Overall length: small frame with 3 inch barrel 6 3/8 inches, large frame with 3 ¼ inch barrel 7 3/8 inches. Main serial number location on left side of grip frame grips must be removed to see. The Third Model features a double top post barrel latch, coil hammer spring and four cross pins in the lower frame.
VALUE: 100%=$260 60%=$125
bill