You have a very nice Finnish Army Luger.
Being Finn, I dont see anything wrong with it as a piece, except that dang front sight certainly isnt a Luger Front sight, and the rebarreling was most likely done by the Finns from a 7.65mm to 9mm, and swakensmacked with an SA sometime after 1942. The T in a triangle in a circle is the stamp of Tikkakoskoi,, AKA: 'Tikka', who made the barrel for the Finnish army. Thats what happend to the Militray owned Lugers, while a private purchase by an officer could have just as easily been a 7.65mm, prewar.
Tikka also made barrels for Mosin's that are stamped T ina triangle in a circle and then barreled at the Military factorys of VTK AkA 'Valmet', the military arms makers, while SAKO made barrels and weapons for Finland's Civil Guard
The Finn army "Suomi Armee" (SA) would repair any and all weapons with any part they could and to heck with the serial numbers if it worked.
Mixmatched parts and numbers are the way they kept what few weapons their little army had up and working to keep the Soviets at bay, for as long s they could.
They did the most with the least and fought the Soviets to a standstill....twice.
Anything average "Finn" has a bit higher collector value than "Average" German Lugers. This would be of more interest to collectors of things "Finn" and not necessarily a Luger collector, who would see it as a variation to their huge collectings.
Lugers were purchased from Germany by the crate load after WW1, when Finnland was forming its army and purchasing used weapons anywhere they could get them.
They were very popular and many were updated and rebuilt for further service the entire time the Finns used them.
If its a shooter, cleaning up that front end and replacing the sight with a "real" one wouldnt be bad at all.
The springs and such should be fine, but new ones wouldnt hurt.at all.
Lugers with wooden grips of get a chip on the thin upper near the safety, sometimes near the mag release or bottom screws .