Further to the differences between Collins and Meanea, I'd say that the leather rises higher over the cylinder, the bulge between the loops is lower, the waist is slimmer and the end is slimmer in the Collins than in the Meanea. Here's a photo of a Collins holster which has had its skirt cut away by some ill-advised person. The virtue of it is that we can see the shape of the holster very clearly.
This is the same configuration as in the Roosevelt holster.