I just tried - .45 long Colt will not fit in it.The serial number of this TL is 2147. The serial number is not drilled through in order to add the lanyard ring, it is beside it. There is no caliber marked on either side of the barrel.

Hondo 44 talks aobut the 3 versions in a recent post, as follows:

The 3 Versions of Hand Ejectors chambered in .455 Mk II for the British are:

1. “.44 HE 1st Model”, TL with .455 Mk II chambering: 812* factory reconfigured unassembled or unsold ".44 Spl HE 1st Models", often not .455 stamped, original chamberings unknown, 666 for the British #1104 thru 10417….These 812 .455 TLs were serial #’d in the .44 1st Model serial # range of 1 to 15375. Shipped 1914-16.

2. “.455 Mk II HE 1st Model”, TL in the new .455 British serial # range 1 to #5461 [H of S&W pg. 201] made 1914-15; thus creating a possible ~ 68* duplicate serial #s of the 812 “.44 HE 1st Model TLs, also in .455 chambering in 1. above.

3. “.455 Mk II HE 2nd Model” (with slightly different cylinder/frame window dimensions from the 44 and 455 HE 1st Models) continued in the .455 1st Model TL Brit serial range beginning #5462 to #74755, - Mine is #2147, so not this one.

Based on info and pictures provided above, can anyone tell me if I have the version 1 or the version 2 – and how you tell the difference?