The roll marks would be identicle as the OP's gun if this 6.5" was cut,
Notice the "N" in S&W ends even with the front of the ejector rod.
The OP's gun below, notice the whole word "SMITH" is ahead of the lug, Lees gun just has the "SM" ahead of it.
The roll marks are a bit further forward than Lees 4" which is posted below.