I will let the attached photo demonstrate that the Perrys are much larger; especially their cavalry. And correctly so IMHO. Most metal versions of horses, and this is particularly true of OG, are horrible examples of the species. However as a grouping I guess they do the trick but cannot be mixed with many other manufacturers.
|Old Glory American Dragoons from their War of 1812 range (left) although the horses are used for many of their ranges I am afraid. Perry plastic (right) from their French 'heavy cavalry' box.|
As the OG horses are quite short in stature, the dismounted Perry dragoons are quite tall in comparison. But they would be separate units.
The photo - rather poor rushed as it was to provide him with a quick answer- is from table view and the figures are at an even level. The figure on the right is a French General I built from a cuirassier but the horse would be the same as their French dragoon version and the dragoon riders would be the same size.