Arabian Tulwars

[archer]

Recently purchased two sleeper tulwar's listed as Arabian Swords. After seeing a recent post by Lotfy and another by Jim that the claim of having been acquired in Arabia by a relative in the 60s made sense.
Both Arabian Tulwar's weigh in a 2 lbs 2 ounces, The silver hilt one has a 30.5 in blade and balances on the flat 7 inches out from the begining of the ricasso. The second deeper bellied blade is 28.25 in. and balances only on it's spline, (back of blade). These are all new to me. The longer blade one feels more functional. the curved blade encourages a forward chopping motion.
The silver hilted Tulwar has an 8.5in. back edge all edges remain sharp and show no recent sharpening The blade has two three dot triangles. The second blade has an N like stamped on the smoothly ground side and a roughly shaped finish on the other side with remenents of writing? and stamps, 9.5 back edge.
Since these tulwars feel so different would they have different styles in use? Any thing you can teach me about them will be helpful. Steve