It Is an M-27 Finnish Army Rifle.
Prehaps your bolt connector has a "Wing" on it and corrasponding slots in the reciver, at the rear lower inner area, close to the cocking knob, where the 'wings' enter and engauge when the bolt is closed. Only the M-27 had those, but not all of them, as they discontenued them in 1933.Alot had their connecting bar replaced on their bolt, as they were a source of binding.
If it were an early M-28, that had Tikka made barrels, the serial # would be much lower, and there would be a Civil Guard # number running horizontal on the rifles barrel, immediatly behind the rear sight, in the same area as the other marks.
The barrel is marked with a 'Triangle'd T", denoteing Tikka manufacture, as they made barrels for the Finnish Army.
If it were marked SAKO, you would see a large 'S' in a "Gear wheel" marking, it would be an M-28 and would have been manufactured for the Finnish Civil Guard. An M-28 that was not modifyed to the M-28/30 rear sights is pretty rare. Civil Guard rifles are usulay marked with an 'SY' or S.k.Y. marking.
The 'F' notes chamber specifications, when first constructed, as does the "D". The 'D' mark denotes that the throat of the chamber is relived to take the Finn D166 round type of the 7.62X54r., develped in the late 1930's and superceeded the previous chamberings, and the rifles who's chambers were brought to those specications were marked as such.
The rear sight is Finn modifyed with a rear plate for adjustments to the notch, with two screws in place.
Both the M-28 and the M-27 used the modifyed Koronove (sp?)rear sights, but the Civil Guard came up with the better rear sight with their M-28/30 modle. This rear sight design was also used on the later M-39 when the Civil Guard and the Army's of Finnland decided to issue one rifle type to the Finnish troops of both military institutions.
If the reciver is markked with an 'E' That has the middle of the three horizontal lines that make the 'E' that go's outthe left side of the letter as an arrow sorta <-E looking mark, then it would have been made by New England Westinghouse, for the Imperial Russian , prior to the Russian Revolution of 1918.
The stock is an M-28, or M-28/30 , the Civil Guards rifle, with a reinforcement bolt near the front band/bayonet mount, and sling slots for the sling, rather than a rear sling swivle as the Army and elongated steel "popsicle stick' type re-enforcements to the front band. Some M-27 stocks were made with both front and rear slots, but very few. M-28 stocks on an M-27 is fairly common. After the war, it was common to repair a rifle with what fit and was at hand, and bothe M-27's and M-28's were very simular.
Very nice Rifle, Indeed.
